Table Of Contents

debug mpls ldp transport connections

debug mpls ldp transport events

debug mpls lfib cef

debug mpls lfib enc

debug mpls lfib lsp

debug mpls lfib state

debug mpls lfib struct

debug mpls packets

debug mpls static binding

debug mpls traffic-eng areas

debug mpls traffic-eng autoroute

debug mpls traffic-eng link-management admission-control

debug mpls traffic-eng link-management advertisements

debug mpls traffic-eng link-management bandwidth-allocation

debug mpls traffic-eng link-management errors

debug mpls traffic-eng link-management events

debug mpls traffic-eng link-management igp-neighbors

debug mpls traffic-eng link-management links

debug mpls traffic-eng link-management preemption

debug mpls traffic-eng link-management routing

debug mpls traffic-eng load-balancing

debug mpls traffic-eng path

debug mpls traffic-eng topology change

debug mpls traffic-eng topology lsa

debug mpls traffic-eng tunnels errors

debug mpls traffic-eng tunnels events

debug mpls traffic-eng tunnels labels

debug mpls traffic-eng tunnels reoptimize

debug mpls traffic-eng tunnels signalling

debug mpls traffic-eng tunnels state

debug mpls traffic-eng tunnels timers

debug mpls xtagatm cross-connect

debug mpls xtagatm errors

debug mpls xtagatm events

debug mpls xtagatm vc

debug mpls ldp transport connections

To display information about the TCP connections used to support Label Distribution Protocol (LDP) sessions, use the debug mpls ldp transport connections command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls ldp transport connections [peer-acl acl] [interface interface]

no debug mpls ldp transport connections [peer-acl acl] [interface interface]

Syntax Description

peer-acl acl	(Optional) Limits the displayed information to that for LDP peers permitted by the access control list (ACL).
interface interface	(Optional) Limits the displayed information to that for the specified interface.

Defaults

Displays information about LDP TCP connection activity for all peers and all interfaces.

Command Modes

Privileged EXEC

Command History

Release	Modification
11.1 CT	This command was introduced.
12.0(10)ST	This command was modified to reflect Multiprotocol Label Switching (MPLS) IETF command syntax and terminology.
12.1(8a)E	This command was integrated into Cisco IOS Release 12.1(8a)E.
12.2(2)T	This command was integrated into Cisco IOS Release 12.2(2)T.

Usage Guidelines

Use this command to monitor LDP activity relating to the establishment of the TCP connection for LDP sessions.

When two devices establish a TCP connection for an LDP session, the device with the larger transport address plays an active role and the other plays a passive role. The active device attempts to establish a TCP connection to the well-known LDP port at the passive device. The passive device waits for the connection to the well-known port to be established.

Examples

The following shows sample output from the debug mpls ldp transport connections command:

Router# debug mpls ldp transport connections

Debug output at active peer:

ldp: Opening listen port 646 for 10.0.0.44, 34.0.0.44

ldp: Open LDP listen TCB 0x60E105BC; lport = 646; fhost = 10.0.0.44

ldp: Add listen TCB to list; tcb 0x60E105BC; addr 10.0.0.44

ldp: Incoming ldp conn 133.0.0.33:646 <-> 10.0.0.44:11042

ldp: create ptcl_adj: tp = 0x610ECD64, ipaddr = 10.0.0.44

Debug output at passive peer:

ldp: Opening ldp conn; adj 0x60BAC33C, 10.0.0.44 <-> 133.0.0.33

ldp: ldp conn is up; adj 0x60BAC33C, 10.0.0.44:11042 <-> 133.0.0.33:646

Table 205 describes the significant fields shown in the sample display.

Table 205 debug mpls ldp transport connections Field Descriptions  

Field	Description
ldp:	Identifies the source of the message as LDP.
adj 0xnnnnnnnn	Identifies the data structure used to represent the peer at the transport level. Useful for correlating debug output.
a.b.c.d <-> p.q.r.s	Indicates a TCP connection between a.b.c.d and p.q.r.s.
a.b.c.d:x <-> p.q.r.s:y	Indicates a TCP connection between a.b.c.d, port x and p.q.r.s, port y.

Related Commands

Command	Description
debug mpls ldp transport events	Prints information about the events related to the LDP peer discovery mechanism.

debug mpls ldp transport events

To display information about events related to the Label Distribution Protocol (LDP) peer discovery mechanism, use the debug mpls ldp transport events command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls ldp transport events [peer-acl acl] [interface]

no debug mpls ldp transport events [peer-acl acl] [interface]

Syntax Description

peer-acl acl	(Optional) Limits the displayed information to that for LDP peers permitted by the access control list (ACL).
interface	(Optional) Limits the displayed information to that for the specified interface.

Defaults

Displays information about LDP discovery activity for all peers and all interfaces.

Command Modes

Privileged EXEC

Command History

Release	Modification
11.1 CT	This command was introduced.
12.0(10)ST	This command was modified to reflect Multiprotocol Label Switching (MPLS) IETF command syntax and terminology.
12.1(8a)E	This command was integrated into Cisco IOS Release 12.1(8a)E.
12.2(2)T	This command was integrated into Cisco IOS Release 12.2(2)T.

Usage Guidelines

Use the command to monitor LDP discovery activity. This mechanism is used to determine the devices with which you wish to establish LDP sessions.

This command might generate a great deal of output. Use the peer-acl option or interface option, or both, to limit the output to peers or interfaces of interest.

---

Note The command includes all of the output generated by the debug mpls ldp transport connections command.

---

Examples

The following shows sample output from the debug mpls ldp transport events command:

Router# debug mpls ldp transport events

ldp: enabling ldp on Ethernet1/1/1

ldp: Set intf id: intf 0x611D684C, Ethernet1/1/1, not lc-atm, intf_id 0

ldp: Set intf id: intf 0x617C5638, ATM0/0.2, not lc-atm, intf_id 0

ldp: Send ldp hello; ATM3/0.1, src/dst 8.1.1.1/224.0.0.2, inst_id 1, tcatm

ldp: Rcvd ldp hello; ATM3/0.1, from 203.0.7.7 (203.0.7.7:2), intf_id 1, opt 0x8, tcatm

ldp: Send ldp hello; Ethernet1/1/1, src/dst 138.1.0.88/224.0.0.2, inst_id 0

ldp: Rcvd ldp hello; Ethernet1/1/1, from 10.105.0.9 (7.1.1.1:0), intf_id 0, opt 0xC

ldp: ldp Hello from 10.105.0.9 (7.1.1.1:0) to 224.0.0.2, opt 0xC

ldp: New adj 0x617C5EBC from 10.105.0.9 (7.1.1.1:0), Ethernet1/1/1

ldp: Opening ldp conn; adj 0x617C5EBC, 8.1.1.1 <-> 7.1.1.1

ldp: ldp conn is up; adj 0x617C5EBC, 8.1.1.1:11013 <-> 7.1.1.1:646

ldp: Send ldp hello; ATM3/0.1, src/dst 8.1.1.1/224.0.0.2, inst_id 1, tcatm

ldp: Rcvd ldp hello; ATM3/0.1, from 203.0.7.7 (203.0.7.7:2), intf_id 1, opt 0x8, tcatm

ldp: Send ldp hello; Ethernet1/1/1, src/dst 138.1.0.88/224.0.0.2, inst_id 0

ldp: Rcvd ldp hello; Ethernet1/1/1, from 10.105.0.9 (7.1.1.1:0), intf_id 0, opt 0xC

...

ldp: Send ldp hello; Ethernet1/1/1, src/dst 138.1.0.88/224.0.0.2, inst_id 0

ldp: Send ldp hello; ATM3/0.1, src/dst 8.1no tag ip

.0.2, inst_id 1, tcatm

ldp: disabling ldp on Ethernet1/1/1

ldp: Hold timer expired for adj 0x617C5EBC, will close conn

ldp: Closing ldp conn 8.1.1.1:11013 <-> 7.1.1.1:646, adj 0x617C5EBC

ldp: Adjacency 0x617C5EBC, 10.105.0.9 timed out

ldp: Adj 0x617C5EBC; state set to closed

ldp: Rcvd ldp hello; ATM3/0.1, from 203.0.7.7 (203.0.7.7:2), intf_id 1, opt 0x8, tcatm

ldp: Ignore Hello from 10.105.0.9, Ethernet1/1/1; no intf

Table 206 describes the significant fields in the sample display.

Table 206 debug mpls ldp transport events Field Descriptions

Field	Description
ldp:	Identifies the source of the message as LDP.
adj 0xnnnnnnnn	Identifies the data structure used to represent the peer at the transport level. Useful for correlating debug output.
a.b.c.d (p.q.r.s:n)	Network address and LDP identifier of the peer.
intf_id	Interface identifier (non-zero for LC-ATM interfaces; 0 otherwise).
opt 0xn	Bits that describe options in the LDP discovery Hello packet: •0x1—Targeted Hello option •0x2—Send targeted Hello option •0x4—Transport address option •0x8—LDP Hello message (as opposed to TDP Hello message)

Related Commands

Command	Description
debug mpls ldp transport connections	Displays information about the TCP connections used to support LDP sessions.
show mpls ldp discovery	Displays the status of the LDP discovery process.

debug mpls lfib cef

To print detailed information about label rewrites being created, resolved, and deactivated as Cisco Express Forwarding (CEF) routes are added, changed, or removed, use the debug mpls lfib cef command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls lfib cef

no debug mpls lfib cef

Syntax Description

This command has no keywords or arguments.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
11.1CT	This command was introduced.
12.1(3)T	This command was modified to reflect new MPLS IETF terminology and CLI syntax.

Usage Guidelines

Several lines of output are produced for each route placed into the label-forwarding information base (LFIB). If your router has thousands of labeled routes, be careful about issuing this command. When label switching is first enabled, each of these routes is placed into the LFIB, and several lines of output are displayed for each route.

Examples

The following is sample output from the debug mpls lfib cef command:

Router# debug mpls lfib cef

Cisco Express Forwarding related TFIB services debugging is on

tagcon: tc_ip_rtlookup fail on 10.0.0.0/8:subnet_lookup failed

TFIB: route tag chg 10.7.0.7/32,idx=1,inc=Withdrn,outg=Withdrn,enabled=0x2

TFIB: fib complete delete: prefix=10.7.0.7/32,inc tag=26,delete_info=1

TFIB: deactivate tag rew for 10.7.0.7/32,index=0

TFIB: set fib rew: pfx 10.7.0.7/32,index=0,add=0,tag_rew->adj=Ethernet2/3

TFIB: resolve tag rew,prefix=10.7.0.7/32,no tag_info,no parent

TFIB: fib scanner start:needed:1,unres:0,mac:0,loadinfo:0

TFIB: resolve tag rew,prefix=10.7.0.7/32,no tag_info,no parent

TFIB: fib upd loadinf 10.100.100.100/32,tag=Tun_hd,fib no loadin,tfib no loadin

TFIB: fib check cleanup for 10.100.100.100/32,index=0,return_value=0

TFIB: fib_scanner_end

TFIB: create dynamic entry for 10.11.0.11/32

TFIB: call find_route_tags,dist_method=1,next_hop=10.93.0.11,Et2/3

TFIB: route tag chg 10.11.0.11/32,idx=0,inc=26,outg=Unkn,enabled=0x3

TFIB: create tag info 10.11.0.11/32,inc tag=26,has no info

TFIB: resolve tag rew,prefix=10.11.0.11/32,has tag_info,no parent

TFIB: finish fib res 10.11.0.11/32:index 0,parent outg tag no parent

TFIB: fib upd loadinf 10.11.0.11/32,tag=26,fib no loadin,tfib no loadin

TFIB: set fib rew: pfx 10.11.0.11/32,index=0,add=1,tag_rew->adj=Ethernet2/3

tagcon: route_tag_change for: 10.250.0.97/32

        intag 33, outtag 28, nexthop tsr 10.11.0.11:0

TFIB: route tag chg 10.250.0.97/32,idx=0,inc=33,outg=28,enabled=0x3

TFIB: deactivate tag rew for 10.250.0.97/32,index=0

TFIB: set fib rew: pfx 10.250.0.97/32,index=0,add=0,tag_rew->adj=Ethernet2/3

TFIB: create tag info 10.250.0.97/32,inc tag=33,has old info

On VIP:

TFIB: route tag chg 10.13.72.13/32,idx=0,inc=34,outg=Withdrn,enabled=0x3

TFIB: deactivate tag rew for 10.13.72.13/32,index=0

TFIB: set fib rew: pfx 10.13.72.13/32,index=0,add=0,tag_rew->adj=

TFIB: create tag info 10.13.72.13/32,inc tag=34,has old info

TFIB: resolve tag rew,prefix=10.13.72.13/32,has tag_info,no parent

TFIB: finish fib res 10.13.72.13/32:index 0,parent outg tag no parent

TFIB: set fib rew: pfx 10.100.100.100/32,index=0,add=0,tag_rew->adj=

TFIB: create tag info 10.100.100.100/32,inc tag=37,has old info

TFIB: resolve tag rew,prefix=10.100.100.100/32,has tag_info,no parent

TFIB: finish fib res 10.100.100.100/32:index 0,parent outg tag no parent

TFIB: fib upd loadinf 10.100.100.100/32,tag=37,fib no loadin,tfib no loadin

Table 207 lists the significant fields shown in the display.

See Table 209 for a description of special labels that appear in the output of this debug command.

Table 207 debug mpls lfib cef Field Descriptions 

Field	Description
tagcon	The name of the subsystem issuing the debug output (Label Control).
LFIB	The name of the subsystem issuing the debug output.
tc_ip_rtlookup fail on x.y.w.z/m: subnet_lookup failed	The destination with IP address and mask shown is not in the routing table.
route tag chg x.y.w.z/m	Request to create the LFIB entry for the specified prefix/mask.
idx=-1	The index within the FIB entry of the path whose LFIB entry is being created. The parameter -1 means all paths for this FIB entry.
inc=s	Incoming label of the entry being processed.
outg=s	Outgoing label of the entry being processed.
enabled=0xn	Bit mask indicating the types of label switching currently enabled: •0x1 = dynamic •0x2 = TSP tunnels •0x3 = both
fib complete delete	Indicates that the FIB entry is being deleted.
prefix=x.y.w.z/m	A destination prefix.
delete_info=1	Indicates that label_info is also being deleted.
deactivate tag rew for x.y.w.z/m	Indicates that label rewrite for specified prefix is being deleted.
index=n	Index of path in the FIB entry being processed.
set fib rew: pfx x.y.w.z/m	Indicates that label rewrite is being installed or deleted from the FIB entry for the specified destination for label imposition purposes.
add=0	Indicates that label rewrite is being deleted from the FIB (no longer imposing labels).
tag_rew->adj=s	Adjacency of label rewrite for label imposition.
resolve tag rew,prefix=x.y.w.z/m	Indicates that the FIB route to the specified prefix is being resolved.
no tag_info	Indicates that there is no label_info for the destination (destination not labeled).
no parent	Indicates that the route is not recursive.
fib scanner start	Indicates that the periodic scan of the FIB has started.
needed:1	Indicates that the LFIB needs the FIB to be scanned.
unres:n	Indicates the number of unresolved TFIB entries.
mac:n	Indicates the number of TFIB entries missing MAC strings.
loadinfo:n	Indicates whether the nonrecursive accounting state has changed and whether the loadinfo information in the LFIB needs to be adjusted.
fib upd loadinf x.y.w.z/m	Indicates that a check for nonrecursive accounting is being made and that the LFIB loadinfo information for the specified prefix is being updated.
tag=s	Incoming label of entry.
fib no loadin	Indicates that the corresponding FIB entry has no loadinfo.
tfib no loadin	Indicates that the LFIB entry has no loadinfo.
fib check cleanup for x.y.w.z/m	Indicates that a check is being made on the LFIB entry for the specified destination to determine if rewrite needs to be removed from the LFIB.
return_value=x	If x is 0, indicates that no change has occurred in the LFIB entry. If x is 1, there was a change.
fib_scanner_end	Indicates that the FIB scan has come to an end.
create dynamic entry for x.y.w.z/m	Indicates that the LFIB has been enabled and that an LFIB entry is being created for the specified destination.
call find_route_tags	Indicates that the labels for that destination are being requested.
dist_method=n	Identifies the label distribution method—TDP, TC-ATM, and so on.
next_hop=x.y.z.w	Identifies the next hop for the destination.
interface name	Identifies the outgoing interface for the destination.
create tag info	Indicates that a label_info data structure is being created for the destination.
has no info	Indicates that the destination does not already have label_info.
finish fib re x.y.z.w/m	Indicates that the LFIB entry for the specified route is being completed.
parent outg tag s	If recursive, specifies the outgoing label of the route through which it is recursive (the parent). If not recursive, s = "no parent."
tagcon: route_tag_change for: x.y.z.w/m	Indicates that label control is notifying LFIB that labels are available for the specified destination.
intag s	Identifies the incoming label for the destination.
outtag s	Identifies the outgoing label for the destination.
nexthop tsr x.y.z.w.i	Identifies the TDP ID of the next hop that sent the tag.

Related Commands

Command	Description
debug mpls lfib lsp	Prints detailed information about label rewrites being created and deleted as LSP tunnels are added or removed.
debug mpls lfib state	Traces what happens when label switching is enabled or disabled.
debug mpls lfib struct	Traces the allocation and freeing of LFIB-related data structures, including the LFIB itself, label rewrites, and label_info data.

debug mpls lfib enc

To print detailed information about label encapsulations while label rewrites are created or updated and placed in the label-forwarding information base (LFIB), use the debug mpls lfib enc command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls lfib enc

no debug mpls lfib enc

Syntax Description

This command has no keywords or arguments.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
11.1CT	This command was introduced.
12.1(3)T	This command was modified to reflect new MPLS IETF terminology and CLI syntax.

Usage Guidelines

Several lines of output are produced for each route placed into the LFIB. If your router has thousands of labeled routes, issue this command with care. When label switching is first enabled, each of these routes is placed into the LFIB and a label encapsulation is created. The command output shows you on which adjacency the label rewrite is being created and the labels assigned.

Examples

The following is sample output from the debug mpls lfib enc command. This example shows the encapsulations for three routes that have been created and placed into the LFIB.

Router# debug mpls lfib enc

TFIB: finish res:inc tag=28,outg=Imp_null,next_hop=10.93.72.13,Ethernet4/0/3

TFIB: update_mac, mac_length = 14,addr=10.93.72.13,idb=Ethernet4/0/3

TFIB: get ip adj: addr=10.93.72.13,is_p2p=0,fibidb=Ethernet4/0/3,linktype=7

TFIB: get tag adj: addr=10.93.72.13,is_p2p=0,fibidb=Ethernet4/0/3,linktype=79

TFIB: encaps:inc=28,outg=Imp_null,idb:Ethernet4/0/3,sizes 14,14,1504,type 0

TFIB: finish res:inc tag=30,outg=27,next_hop=10.93.72.13,Ethernet4/0/3

TFIB: get ip adj: addr=10.93.72.13,is_p2p=0,fibidb=Ethernet4/0/3,linktype=7

TFIB: get tag adj: addr=10.93.72.13,is_p2p=0,fibidb=Ethernet4/0/3,linktype=79

TFIB: encaps:inc=30,outg=27,idb:Ethernet4/0/3,sizes 14,18,1500,type 0

TFIB: finish res:inc tag=30,outg=10,next_hop=0.0.0.0,ATM0/0.1

TFIB: get ip adj: addr=0.0.0.0,is_p2p=1,fibidb=ATM0/0.1,linktype=7

TFIB: get tag adj: addr=0.0.0.0,is_p2p=1,fibidb=ATM0/0.1,linktype=79

TFIB: encaps:inc=30,outg=10,idb:ATM0/0,sizes 4,8,4470,type 1

Table 208 describes the significant fields shown in the display.

Table 208 debug mpls lfib enc Field Descriptions  

Field	Description
TFIB	Identifies the source of the message as the LFIB subsystem.
finish res	Identifies that the LFIB resolution is being finished.
inc tag=x or inc=x	An incoming (local) label for the LFIB entry is being created. Labels can be numbers or special values.
outg=y	An outgoing (remote) label for the LFIB entry is being created.
next_hop=a.b.c.d	IP address of the next hop for the destination.
interface	The outgoing interface through which a packet will be sent.
get ip adj	Identifies that the IP adjacency to use in the LFIB entry is being determined.
get tag adj	Identifies that the label switching adjacency to use for the LFIB entry is being determined.
addr = a.b.c.d	The IP address of the adjacency.
is_p2p=x	If x is 1, this is a point-to-point adjacency. If x is 0, it is not.
fibidb = s	Indicates the interface of the adjacency.
linktype = x	The link type of the adjacency, as follows: •7 = LINK_IP •79 = LINK_TAG
sizes x,y,z	Indicates the following values: •x = length of macstring •y = length of tag encapsulation •z = tag MTU
type = x	Tag encapsulation type, as follows: •0 = normal •1 = TCATM •2 = TSP tunnel
idb:s	Indicates the outgoing interface.
update_mac	Indicates that the macstring of the adjacency is being updated.

Table 209 describes the special labels, which sometimes appear in the debug output, and their meanings.

Table 209 Special Labels Appearing in debug Command Output 

Special Label	Meaning
Unassn—Inital value	No label assigned yet.
Unused	This destination does not have a label (for example, a BGP route).
Withdrn	The label for this destination has been withdrawn.
Unkn	This destination should have a label, but it is not yet known.
Get_res	A recursive route that will get a label when resolved.
Exp_null	Explicit null label—used over TC-ATM.
Imp_null	Implicit null label—for directly connected routes.
Tun_hd	Identifies head of TSP tunnel.

Related Commands

Command	Description
debug mpls lfib cef	Prints detailed information about label rewrites being created, resolved, and deactivated as CEF routes are added, changed, or removed.
debug mpls lfib lsp	Prints detailed information about label rewrites being created and deleted as LSP tunnels are added or removed.
debug mpls lfib state	Traces what happens when label switching is enabled or disabled.
debug mpls lfib struct	Traces the allocation and freeing of LFIB-related data structures, including the LFIB itself, label rewrites, and label_info data.

debug mpls lfib lsp

To print detailed information about label rewrites being created and deleted as label-switched path (LSP) tunnels are added or removed, use the debug mpls lfib lsp command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls lfib lsp

no debug mpls lfib lsp

Syntax Description

This command has no keywords or arguments.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
11.1CT	This command was introduced.
12.1(3)T	This command was modified to reflect new MPLS IETF terminology and CLI syntax.

Examples

The following is sample output from the debug mpls lfib lsp command:

Router# debug mpls lfib lsp

TSP-tunnel related TFIB services debugging is on

TFIB: tagtun,next hop=10.93.72.13,inc=35,outg=1,idb=Et4/0/3

TFIB: tsptunnel:next hop=10.93.72.13,inc=35,outg=Imp_null,if_number=7

TFIB: tsptun update loadinfo:tag=35,loadinfo_reqd=0,no new loadinfo,no old loadinfo

TFIB: tagtun tag chg linec,fiblc=0,in tg=35,o tg=1,if=7,nh=10.93.72.13

TFIB: tagtun,next hop=10.92.0.7,inc=36,outg=1,idb=Et4/0/2

TFIB: tsptunnel:next hop=10.92.0.7,inc=36,outg=Imp_null,if_number=6

TFIB: tsptun update loadinfo:tag=36,loadinfo_reqd=0,no new loadinfo,no old loadinfo

TFIB: tagtun tag chg linec,fiblc=0,in tg=36,o tg=1,if=6,nh=10.92.0.7

TFIB: tagtun_delete, inc = 36

tagtun tag del linec,itag=12

TFIB: tagtun_delete, inc = 35

tagtun tag del linec,itag=12

TFIB: tagtun,next hop=10.92.0.7,inc=35,outg=1,idb=Et4/0/2

TFIB: tsptunnel:next hop=10.92.0.7,inc=35,outg=Imp_null,if_number=6

TFIB: tsptun update loadinfo:tag=35,loadinfo_reqd=0,no new loadinfo,no old loadinfo

TFIB: tagtun tag chg linec,fiblc=0,in tg=35,o tg=1,if=6,nh=10.92.0.7

On VIP:

TFIB: tagtun chg msg,in tg=35,o tg=1,nh=10.93.72.13,if=7

TFIB: tsptunnel:next hop=10.93.72.13,inc=35,outg=Imp_null,if_number=7

TFIB: tsptun update loadinfo:tag=35,loadinfo_reqd=0,no new loadinfo,no old loadinfo

TFIB: tagtun chg msg,in tg=36,o tg=1,nh=10.92.0.7,if=6

TFIB: tsptunnel:next hop=10.92.0.7,inc=36,outg=Imp_null,if_number=6

TFIB: tsptun update loadinfo:tag=36,loadinfo_reqd=0,no new loadinfo,no old loadinfo

TFIB: tagtun chg msg,in tg=35,o tg=1,nh=10.93.72.13,if=7

TFIB: tsptunnel:next hop=10.93.72.13,inc=35,outg=Imp_null,if_number=7

TFIB: tsptun update loadinfo:tag=35,loadinfo_reqd=0,no new loadinfo,no old loadinfo

TFIB: tagtun chg msg,in tg=36,o tg=1,nh=10.92.0.7,if=6

TFIB: tsptunnel:next hop=10.92.0.7,inc=36,outg=Imp_null,if_number=6

TFIB: tsptun update loadinfo:tag=36,loadinfo_reqd=0,no new loadinfo,no old loadinfo

TFIB: tagtun chg msg,in tg=35,o tg=1,nh=10.92.0.7,if=6

TFIB: tsptunnel:next hop=10.92.0.7,inc=35,outg=Imp_null,if_number=6

TFIB: tsptun update loadinfo:tag=35,loadinfo_reqd=0,no new loadinfo,no old loadinfo

Table 210 describes the significant fields shown in the sample display.

Table 210 debug mpls lfib lsp Field Descriptions  

Field	Description
tagtun	Name of routine entered.
next hop=x.y.z.w	Next hop for the tunnel being created.
inc=x	Incoming label for this hop of the tunnel being created.
outg=x	Outgoing label (1 means Implicit Null label).
idb=s	Outgoing interface for the tunnel being created.
if_number=7	Interface number of the outgoing interface.
tsptunnel	Name of the routine entered.
tsptun update loadinfo	The procedure being performed.
tag=x	Incoming label of the LFIB slot whose loadinfo is being updated.
loadinfo_reqd=x	Indicates whether a loadinfo is expected for this entry (non-recursive accounting is on).
no new loadinfo	No change required in loadinfo.
no old loadinfo	No previous loadinfo available.
tagtun tag chg linec	Line card is being informed of the TSP tunnel.
fiblc=x	Indicates which line card is being informed (0 means all).
in tg=x	Indicates the incoming label of new TSP tunnel.
o tg=x	Indicates the outgoing label of new TSP tunnel.
if=x	Indicates the outgoing interface number.
nh=x.y.w.z	Indicates the next hop IP address.
tagtun_delete	Indicates that a procedure is being performed: delete a TSP tunnel.
tagtun tag del linec	Informs the line card of the TSP tunnel deletion.
tagtun chg msg	Indicates that the line card has received a message to create a TSP tunnel.

Related Commands

Command	Description
debug mpls lfib cef	Prints detailed information about label rewrites being created, resolved, and deactivated as CEF routes are added, changed, or removed.
debug mpls lfib state	Traces what happens when label switching is enabled or disabled.
debug mpls lfib struct	Traces the allocation and freeing of LFIB-related data structures, including the LFIB itself, label rewrites, and label_info data.

debug mpls lfib state

To trace what happens when label switching is enabled or disabled, use the debug mpls lfib state command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls lfib state

no debug mpls lfib state

Syntax Description

This command has no keywords or arguments.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
11.1CT	This command was introduced.
12.1(3)T	This command was modified to reflect new MPLS IETF terminology and CLI syntax.

Usage Guidelines

Use this command when you wish to trace what happens to the label-forwarding information base (LFIB) when you issue the mpls ip or the mpls tsp-tunnel command.

Examples

The following is sample output from the debug mpls lfib state command:

Router# debug mpls lfib state

TFIB enable/disable state debugging is on

TFIB: Upd tag sb 6(status:0xC1,tmtu:1500,VPI:1-1 VC=0/32,et:0/0/0),lc 0x0

TFIB: intf status chg: idb=Et4/0/2,status=0xC1,oldstatus=0xC3

TFIB: interface dyntag change,change in state to Ethernet4/0/2

TFIB: enable entered, table exists,enabler type=0x2

TFIB: enable, TFIB already enabled, types now 0x3,returning

TFIB: enable entered, table exists,enabler type=0x1

TFIB: disable entered, table exists,type=0x1

TFIB: cleanup: tfib[32] still non-0

On linecard only:

TFIB: disable lc msg recvd, type=0x1

TFIB: Ethernet4/0/1 fibidb subblock message received

TFIB: enable lc msg recvd, type=0x1

TFIB: Tunnel301 set encapfix to 0x6016A97C

Table 211 describes the significant fields shown in the display.

Table 211 debug mpls lfib state Field Descriptions 

Field	Description
LFIB	Identifies the source of the message as the LFIB subsystem.
Upd tag sb x	Indicates that the status of the "xth" label switching sub-block is being updated, where x is the interface number. There is a label switching sub-block for each interface on which label switching has been enabled.
(status:0xC1,tmtu:1500,VPI:1-1VC=0/32, et:0/0/0),lc 0x0)	Identifies the values of the fields in the label switching sub-block, as follows: •status byte •maximum transmission unit (tmtu) •range of ATM VPs •control VP •control VC (if this is a TC-ATM interface) •encapsulation type (et) •encapsulation information •tunnel interface number (lc) •line card number to which the update message is being sent (0 means all line cards)
intf status chg	Indicates that there was an interface status change.
idb=Et4/0/2	Identifies the interface whose status changed.
status=0xC1	Indicates the new status bits in the label switching sub-block of the idb.
oldstatus=0xC3	Indicates the old status bits before the change.
interface dyntag change, change in state to Ethernet4/0/2	Indicates that there was a change in the dynamic label status for the particular interface.
enable entered	Indicates that the code that enables the LFIB was invoked.
TFIB already enabled	Indicates that the LFIB was already enabled when this call was made.
table exists	Indicates that an LFIB table had already been allocated in a previous call.
cleanup: tfib[x] still non-0	Indicates that the LFIB is being deleted, but that slot x is still active.
disable lc mesg recvd, type=0x1	Indicates that a message to disable label switching type 1 (dynamic) was received by the line card.
disable entered, table exists,type=0x1	Indicates that a call to disable dynamic label switching was issued.
Ethernet4/0/1 fibidb subblock message received	Indicates that a message giving fibidb status change was received on the line card.
enable lc msg recvd,type=0x1	Indicates that the line card received a message to enable label switching type 1 (dynamic).
Tunnel301 set encapfix to 0x6016A97C	Shows that fibidb Tunnel301 on the line card received an encapsulation fixup.
types now 0x3, returning	Shows the value of the bitmask indicating the type of label switching enabled on the interface, as follows: •0x1—means dynamic label switching •0x2—means tsp-tunnels •0x3—means both

Related Commands

Command	Description
debug mpls lfib cef	Prints detailed information about label rewrites being created, resolved, and deactivated as CEF routes are added, changed, or removed.
debug mpls lfib lsp	Prints detailed information about label rewrites being created and deleted as LSP tunnels are added or removed.
debug mpls lfib struct	Traces the allocation and freeing of LFIB-related data structures, including the LFIB itself, label rewrites, and label_info data.

debug mpls lfib struct

To trace the allocation and freeing of label-forwarding information base (LFIB)-related data structures, such as the LFIB itself, label rewrites, and label_info data, use the debug mpls lfib struct command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls lfib struct

no debug mpls lfib struct

Syntax Description

This command has no keywords or arguments.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
11.1CT	This command was introduced.
12.1(3)T	This command was modified to reflect new MPLS IETF terminology and CLI syntax.

Examples

The following is sample output from the debug mpls lfib struct command:

Router# debug mpls lfib struct

TFIB data structure changes debugging is on

TFIB: delete tag rew, incoming tag 32

TFIB: remove from tfib,inc tag=32

TFIB: set loadinfo,tag=32,no old loadinfo,no new loadinfo

TFIB: TFIB not in use.  Checking for entries.

TFIB: cleanup: tfib[0] still non-0

TFIB: remove from tfib,inc tag=Tun_hd

TFIB: set loadinfo,tag=Exp_null,no old loadinfo,no new loadinfo

TFIB: TFIB freed.

TFIB: enable, TFIB allocated, size 4024 bytes, maxtag = 500

TFIB: create tag rewrite: inc Tun_hd,outg Unkn

TFIB: add to tfib at Tun_hd, first in circular list, mac=0,enc=0

TFIB: delete tag rew, incoming tag Tun_hd

TFIB: remove from tfib,inc tag=Tun_hd

TFIB: set loadinfo,tag=Exp_null,no old loadinfo,no new loadinfo

TFIB: create tag rewrite: inc Tun_hd,outg Unkn

TFIB: add to tfib at Tun_hd, first in circular list, mac=0,enc=0

TFIB: create tag rewrite: inc 26,outg Unkn

TFIB: add to tfib at 26, first in circular list, mac=0,enc=0

TFIB: add to tfib at 27, added to circular list, mac=0,enc=0

TFIB: delete tag rew, incoming tag Tun_hd

TFIB: remove from tfib,inc tag=Tun_hd

TFIB: set loadinfo,tag=Exp_null,no old loadinfo,no new loadinfo

TFIB: add to tfib at 29, added to circular list, mac=4,enc=8

TFIB: delete tag rew, incoming tag 29

TFIB: remove from tfib,inc tag=29

Table 212 describes the significant fields shown in the display.

Table 212 debug mpls lfib struct Field Descriptions  

Field	Description
TFIB	The subsystem issuing the message.
delete tag rew	A label rewrite is being freed.
remove from tfib	A label rewrite is being removed from the LFIB.
inc tag=s	The incoming label of the entry being processed.
set loadinfo	The loadinfo field in the LFIB entry is being set (used for nonrecursive accounting).
tag=s	The incoming label of the entry being processed.
no old loadinfo	The LFIB entry did not have a loadinfo before.
no new loadinfo	The LFIB entry should not have a loadinfo now.
TFIB not in use. Checking for entries.	Label switching has been disabled and the LFIB is being freed up.
cleanup: tfib[x] still non-0	The LFIB is being checked for any entries in use, and entry x is the lowest numbered slot still in use.
TFIB freed	The LFIB table has been freed.
enable, TFIB allocated, size x bytes, maxtag = y	Label switching has been enabled and an LFIB of x bytes has been allocated. The largest legal label is y.
create tag rewrite	A label rewrite is being created.
inc s	The incoming label.
outg s	The outgoing label.
add to tfib at s	A label rewrite has been placed in the LFIB at slots.
first in circular list	This LFIB slot had been empty and this is the first rewrite in the list.
mac=0,enc=0	Length of the MAC string and total encapsulation length, including labels.
added to circular list	A label rewrite is being added to an LFIB slot that already had an entry. This rewrite is being inserted in the circular list.

Related Commands

Command	Description
debug mpls lfib cef	Prints detailed information about label rewrites being created, resolved, and deactivated as CEF routes are added, changed, or removed.
debug mpls lfib lsp	Prints detailed information about label rewrites being created and deleted as LSP tunnels are added or removed.
debug mpls lfib state	Traces what happens when label switching is enabled or disabled.

debug mpls packets

To display labeled packets switched by the host router, use the debug mpls packets command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls packets [interface]

no debug mpls packets [interface]

Syntax Description

interface

(Optional) The interface or subinterface name.

Defaults

Displays all labeled packets regardless of interface.

Command Modes

Privileged EXEC

Command History

Release	Modification
11.1CT	This command was introduced.
12.1(3)T	This command was modified to reflect new MPLS IETF terminology and CLI syntax.

Usage Guidelines

The optional interface parameter restricts the display to only those packets received or sent on the indicated interface.

---

Note Use this command with care because it generates output for every packet processed. Furthermore, enabling this command causes fast and distributed label switching to be disabled for the selected interfaces. To avoid adversely affecting other system activity, use this command only when traffic on the network is at a minimum.

---

Examples

The following is sample output from the debug mpls packets command:

Router# debug mpls packets

TAG: Hs3/0: recvd: CoS=0, TTL=254, Tag(s)=27

TAG: Hs0/0: xmit: (no tag)

TAG: Hs0/0: recvd: CoS=0, TTL=254, Tag(s)=30

TAG: Hs3/0: xmit: CoS=0, TTL=253, Tag(s)=27

Table 213 describes the significant fields shown in the display.

Table 213 debug mpls packets Field Descriptions  

Field	Description
Hs0/0	The identifier for the interface on which the packet was received or sent.
recvd	Packet received.
xmit	Packet transmitted.
CoS	Class of Service field from the packet label header.
TTL	Time to live field from the packet label header.
(no tag)	Last label popped off the packet and were sent unlabeled.
Tag(s)	A list of labels on the packet, ordered from the top of the stack to the bottom.

Related Commands

Command	Description
show mpls forwarding-table	Displays the contents of the MPLS forwarding table.

debug mpls static binding

To display information related to static binding events, use the debug mpls static binding command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls static binding [vrf vpn-name]

no debug mpls static binding [vrf vpn-name]

Syntax Description

vrf vpn-name

Displays information only for the specified VPN routing and forwarding instance (vpn-name).

Defaults

This command is disabled by default.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(23)S	This command was introduced.
12.0(26)S	This command was incorporated into Cisco IOS Release 12.0(26)S. You can enable debug only for a VRF.
12.3(14)T	This command was integrated into Cisco IOS Release 12.3(14)T.

Usage Guidelines

Use the debug mpls static binding command to troubleshoot problems related to MPLS static labels or VRF aware MPLS static labels. If you specify the vrf keyword, debug is enabled only for a specified VRF.

Examples

The following is sample output from the debug mpls static binding command:

Router# debug mpls static binding vrf vpn100

MPLS Static label bindings debugging is on

00:15:13: mpls: Add remote static binding: 59.0.0.0/8; label 0; nexthop 165.13.0.8:0

00:15:13: mpls: Add static label binding for 59.0.0.0/8

00:15:13: mpls: Add static label binding for 107.0.0.0/8

00:15:13: mpls: Add remote static binding: 107.0.0.0/8; label 2607; nexthop 166.0.0.66:0

00:15:13: mpls: Add static label binding for 130.66.0.0/16

00:15:18: mpls: Periodic static label adjust

00:15:18: mpls: Static label update: 59.0.0.0/8

00:15:18:       Add remote label: nexthop: 165.13.0.8:0; label: 0

00:15:18: mpls: Periodic static label adjust

00:15:18: mpls: Static label update: 107.0.0.0/8

00:15:18:       Waiting for withdrawal of dynamic local label 55

00:15:18:       Add remote label: nexthop: 166.0.0.66:0; label: 2607

00:15:18: mpls: Periodic static label adjust

00:15:18: mpls: Static label update: 130.66.0.0/16

00:15:18:       Waiting for withdrawal of dynamic local label 17

00:15:28: mpls: Periodic static label adjust

00:15:28: mpls: Periodic static label adjust

00:15:28: mpls: Static label update: 107.0.0.0/8

00:15:28:       Local label 55 added to tib

00:15:28:       Signal route tag change, in label 55;out label 8388611; nh 199.44.44.77

00:15:28: mpls: Periodic static label adjust

00:15:28: mpls: Static label update: 130.66.0.0/16

00:15:28:       Local label 17 added to tib

00:15:28:       Signal route tag change, in label 17;out label 8388611; nh 199.44.44.66

00:15:38: mpls: Periodic static label adjust

00:15:38: mpls: Periodic static label adjust

00:15:38: mpls: Periodic static label adjust

Related Commands

Command	Description
mpls static binding ipv4 vrf	Binds a prefix to a local label.
show debug	Displays active debug output.

debug mpls traffic-eng areas

To print information about traffic engineering area configuration change events, use the debug mpls traffic-eng areas command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng areas

no debug mpls traffic-eng areas

Syntax Description

This command has no arguments or keywords.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)ST	This command was introduced.

Examples

In the following example, information is printed about traffic engineering area configuration change events:

Router# debug mpls traffic-eng areas

TE-AREAS:isis level-1:up event

TE-PCALC_LSA:isis level-1

debug mpls traffic-eng autoroute

To print information about automatic routing over traffic engineering tunnels, use the debug mpls traffic-eng autoroute command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng autoroute

no debug mpls traffic-eng autoroute

Syntax Description

This command has no arguments or keywords.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)ST	This command was introduced.

Examples

In the following example, information is printed about automatic routing over traffic engineering tunnels:

Router# debug mpls traffic-eng autoroute

TE-Auto:announcement that destination 0001.0000.0003.00 has 1 tunnels

    Tunnel1 (traffic share 333, nexthop 10.112.0.12)

debug mpls traffic-eng link-management admission-control

To print information about traffic engineering label-switched path (LSP) admission control on traffic engineering interfaces, use the debug mpls traffic-eng link-management admission-control command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng link-management admission-control [detail] [acl-number]

no debug mpls traffic-eng link-management admission-control [detail]

Syntax Description

detail	(Optional) Prints detailed debugging information.
acl-number	(Optional) Uses the specified access list to filter the debugging information. Prints information only for those LSPs that match the access list.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T, and the detail keyword and the acl-number argument were added.

Examples

In the following example, information is printed about traffic engineering LSP admission control on traffic engineering interfaces:

Router# debug mpls traffic-eng link-management admission-control

TE-LM-ADMIT:tunnel 10.106.0.6 1_10002:created [total 4]

TE-LM-ADMIT:tunnel 10.106.0.6 1_10002: "None" -> "New"

TE-LM-ADMIT:tunnel 10.106.0.6 1_10002: "New" -> "Admitting 2nd Path Leg"

TE-LM-ADMIT:tunnel 10.106.0.6 1_10002: "Admitting 2nd Path Leg" -> "Path Admitted"

TE-LM-ADMIT:Admission control has granted Path query for 10.106.0.6 1_10002 (10.112.0.12) 
on link Ethernet4/0/1 [reason 0]

TE-LM-ADMIT:tunnel 10.106.0.6 1_10002: "Path Admitted" -> "Admitting 1st Resv Leg"

TE-LM-ADMIT:tunnel 10.106.0.6 1_10002: "Admitting 1st Resv Leg" -> "Resv Admitted"

TE-LM-ADMIT:Admission control has granted Resv query for 10.106.0.6 1_10002 (10.112.0.12) 
on link Ethernet4/0/1 [reason 0]

debug mpls traffic-eng link-management advertisements

To print information about resource advertisements for traffic engineering interfaces, use the debug mpls traffic-eng link-management advertisements command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng link-management advertisements [detail] [acl-number]

no debug mpls traffic-eng link-management advertisements [detail] [acl-number]

Syntax Description

detail	(Optional) Prints detailed debugging information.
acl-number	(Optional) Uses the specified access list to filter the debugging information.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	The detail keyword was added.

Examples

In the following example, detailed debugging information is printed about resource advertisements for traffic engineering interfaces:

Router# debug mpls traffic-eng link-management advertisements detail

TE-LM-ADV:area isis level-1:IGP announcement:link Et4/0/1:info changed

TE-LM-ADV:area isis level-1:IGP msg:link Et4/0/1:includes subnet type (2), described nbrs 
(1)

TE-LM-ADV:area isis level-1:IGP announcement:link Et4/0/1:info changed

TE-LM-ADV:area isis level-1:IGP msg:link Et4/0/1:includes subnet type (2), described nbrs 
(1)

TE-LM-ADV:LSA:Flooding manager received message:link information change (Et4/0/1)

TE-LM-ADV:area isis level-1:*** Flooding node information ***

  System Information::

    Flooding Protocol:   ISIS

  Header Information::

    IGP System ID:       0001.0000.0001.00

    MPLS TE Router ID:   10.106.0.6

    Flooded Links:       1

  Link ID:: 0

    Link IP Address:     10.1.0.6

    IGP Neighbor:        ID 0001.0000.0001.02

    Admin. Weight:       10

    Physical Bandwidth:  10000 kbits/sec

    Max Reservable BW:   5000 kbits/sec

    Downstream::

      Reservable Bandwidth[0]:       5000 kbits/sec

      Reservable Bandwidth[1]:       2000 kbits/sec

      Reservable Bandwidth[2]:       2000 kbits/sec

      Reservable Bandwidth[3]:       2000 kbits/sec

      Reservable Bandwidth[4]:       2000 kbits/sec

      Reservable Bandwidth[5]:       2000 kbits/sec

      Reservable Bandwidth[6]:       2000 kbits/sec

Attribute Flags:  0x00000000

Table 214 describes the significant fields shown in the display.

Table 214 debug mpls traffic-eng link-management advertisements Field Descriptions 

Field	Description
Flooding Protocol	Interior Gateway Protocol (IGB) that is flooding information for this area.
IGP System ID	Identification that IGP flooding uses in this area to identify this node.
MPLS TE Router ID	MPLS traffic engineering router ID.
Flooded Links	Number of links that are flooded in this area.
Link ID	Index of the link that is being described.
Link IP Address	Local IP address of this link.
IGP Neighbor	IGP neighbor on this link.
Admin. Weight	Administrative weight associated with this link.
Physical Bandwidth	Link's bandwidth capacity (in kbps).
Max Reservable BW	Maximum amount of bandwidth that is currently available for reservation at this priority.
Reservable Bandwidth	Amount of bandwidth that is available for reservation.
Attribute Flags	Attribute flags of the link being flooded.

debug mpls traffic-eng link-management bandwidth-allocation

To print detailed information about bandwidth allocation for traffic engineering label-switched paths (LSPs), use the debug mpls traffic-eng link-management bandwidth-allocation command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng link-management bandwidth-allocation [detail] [acl-number]

no debug mpls traffic-eng link-management bandwidth-allocation [detail] [acl-number]

Syntax Description

detail	(Optional) Prints detailed debugging information.
acl-number	(Optional) Uses the specified access list to filter the debugging information. Prints information only for those LSPs that match the access list.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T. The detail keyword and the acl-number argument were added.

Examples

In the following example, information is printed about bandwidth allocation for traffic engineering LSPs:

Router# debug mpls traffic-eng link-management bandwidth-allocation

TE-LM-BW:tunnel 10.106.0.6 1_10002:requesting Downstream bw hold (3000000 bps [S]) on link 
Et4/0/1

TE-LM-BW:tunnel 10.106.0.6 1_10002:Downstream bw hold request succeeded

TE-LM-BW:tunnel 10.106.0.6 1_10002:requesting Downstream bw lock (3000000 bps [S]) on link 
Et4/0/1

TE-LM-BW:tunnel 10.106.0.6 1_10002:Downstream bw lock request succeeded×_„Rs

Related Commands

Command	Description
debug mpls traffic-eng link-management admission-control	Prints information about traffic engineering LSP admission control on traffic engineering interfaces.
debug mpls traffic-eng link-management errors	Prints information about errors encountered during any traffic engineering link management procedure.

debug mpls traffic-eng link-management errors

To print information about errors encountered during any traffic engineering link management procedure, use the debug mpls traffic-eng link-management errors command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng link-management errors [detail]

no debug mpls traffic-eng link-management errors [detail]

Syntax Description

detail

(Optional) Prints detailed debugging information.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(3)T	This command was introduced.

Examples

In the following example, detailed debugging information is printed about errors encountered during a traffic engineering link management procedure:

Router# debug mpls traffic-eng link-management errors detail

00:04:48 TE-LM-ROUTING: link Et1/1/1: neighbor 0010.0000.0012.01: add to IP peer db failed

Related Commands

Command	Description
debug mpls traffic-eng link-management admission-control	Prints information about traffic engineering LSP admission control on traffic engineering interfaces.
debug mpls traffic-eng link-management advertisements	Prints information about resource advertisements for traffic engineering interfaces.
debug mpls traffic-eng link-management bandwidth-allocation	Prints information about bandwidth allocation for traffic engineering LSPs.
debug mpls traffic-eng link-management events	Prints information about traffic engineering link management system events.
debug mpls traffic-eng link-management igp-neighbors	Prints information about changes to the link management databases of IGP neighbors.
debug mpls traffic-eng link-management links	Prints information about traffic engineering link management interface events.

debug mpls traffic-eng link-management events

To print information about traffic engineering link management system events, use the debug mpls traffic-eng link-management events command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng link-management events [detail]

no debug mpls traffic-eng link-management events [detail]

Syntax Description

detail

(Optional) Prints detailed debugging information.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T and the detail keyword was added.

Examples

In the following example, detailed debugging information is printed about traffic engineering link management system events:

Router# debug mpls traffic-eng link-management events detail

TE-LM-EVENTS:stopping MPLS TE Link Management process

TE-LM-EVENTS:MPLS TE Link Management process dying now

debug mpls traffic-eng link-management igp-neighbors

To print information about changes to the link management database of Interior Gateway Protocol (IGP) neighbors, use the debug mpls traffic eng link-management igp-neighbors command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng link-management igp-neighbors [detail]

no debug mpls traffic-eng link-management igp-neighbors [detail]

Syntax Description

detail

(Optional) Prints detailed debugging information.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T and the detail keyword was added.

Examples

In the following example, detailed debugging information is printed about changes to the link management database of IGP neighbors:

Router# debug mpls traffic-eng link-management igp-neighbors detail

TE-LM-NBR:link AT0/0.2:neighbor 0001.0000.0002.00:created (isis level-1, 10.42.0.10, 
Up)[total 2]

Related Commands

Command	Description
debug mpls traffic-eng link-management events	Prints information about traffic engineering-related ISIS events.

debug mpls traffic-eng link-management links

To print information about traffic engineering link management interface events, use the debug mpls traffic-eng link-management links command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng link-management links [detail]

no debug mpls traffic-eng link-management links [detail]

Syntax Description

detail

(Optional) Prints detailed debugging information.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T and the detail keyword was added.

Examples

In the following example, detailed debugging information is printed about traffic engineering link management interface events:

Router# debug mpls traffic-eng link-management links detail

TE-LM-LINKS:link AT0/0.2:RSVP enabled

TE-LM-LINKS:link AT0/0.2:increasing RSVP bandwidth from 0 to 5000000

TE-LM-LINKS:link AT0/0.2:created [total 2]

TE-LM-LINKS:Binding MPLS TE LM Admission Control as the RSVP Policy Server on ATM0/0.2

TE-LM-LINKS:Bind attempt succeeded

TE-LM-LINKS:link AT0/0.2:LSP tunnels enabled

debug mpls traffic-eng link-management preemption

To print information about traffic engineering label-switched path (LSP) preemption, use the debug mpls traffic-eng link-management preemption command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng link-management preemption [detail]

no debug mpls traffic-eng link-management preemption [detail]

Syntax Description

detail

(Optional) Prints detailed debugging information.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(3)T	This command was introduced.

Examples

In the following example, detailed debugging information is printed about traffic engineering LSP preemption:

Router# debug mpls traffic-eng link-management preemption detail

TE-LM-BW:preempting Downstream bandwidth, 1000000, for tunnel 10.106.0.6 2_2

TE-LM-BW:building preemption list to get bandwidth, 1000000, for tunnel 10.106.0.6 2_2 
(priority 0)

TE-LM-BW:added bandwidth, 3000000, from tunnel 10.106.0.6 1_2 (pri 1) to preemption list

TE-LM-BW:preemption list build to get bw, 1000000, succeeded (3000000)

TE-LM-BW:preempting bandwidth, 1000000, using plist with 1 tunnels

TE-LM-BW:tunnel 10.106.0.6 1_2:being preempted on AT0/0.2 by 10.106.0.6 2_2

TE-LM-BW:preemption of Downstream bandwidth, 1000000, succeeded

debug mpls traffic-eng link-management routing

To print information about traffic engineering link management routing resolutions that can be performed to help Resource Reservation Protocol (RSVP) interpret explicit route objects, use the debug mpls traffic-eng link-management routing command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng link-management routing [detail]

no debug mpls traffic-eng link-management routing [detail]

Syntax Description

detail

(Optional) Prints detailed debugging information.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T and the detail keyword was added.

Examples

In the following example, detailed debugging information is printed about traffic engineering link management routing resolutions that can be performed to help RSVP interpret explicit route objects:

Router# debug mpls traffic-eng link-management routing detail

TE-LM-ROUTING:route options to 10.42.0.10:building list (w/ nhop matching)

TE-LM-ROUTING:route options to 10.42.0.10:adding {AT0/0.2, 10.42.0.10}

TE-LM-ROUTING:route options to 10.42.0.10:completed list has 1 links

Related Commands

Command	Description
debug ip rsvp	Prints information about RSVP signalling events.

debug mpls traffic-eng load-balancing

To print information about unequal cost load balancing over traffic engineering tunnels, use the debug mpls traffic-eng load-balancing command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng load-balancing

no debug mpls traffic-eng load-balancing

Syntax Description

This command has no arguments or keywords.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)ST	This command was introduced.

Examples

In the following example, information is printed about unequal cost load balancing over traffic engineering tunnels:

Router# debug mpls traffic-eng load-balancing

TE-Load:10.210.0.0/16, 2 routes, loadbalancing based on MPLS TE bandwidth

TE-Load:10.200.0.0/16, 2 routes, loadbalancing based on MPLS TE bandwidth

debug mpls traffic-eng path

To print information about traffic engineering path calculation, use the debug mpls traffic-eng path command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng path {num | lookup | spf | verify}

no debug mpls traffic-eng path {num | lookup | spf | verify}

Syntax Description

num	Prints path calculation information only for the local tunneling interface with unit number num.
lookup	Prints information for path lookups.
spf	Prints information for shortest path first (SPF) calculations.
verify	Prints information for path verifications.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)ST	This command was introduced.

Examples

In the following example, information is printed about the calculation of the traffic engineering path:

Router# debug mpls traffic-eng path lookup

TE-PCALC:Tunnel1000 Path Setup to 10.110.0.10:FULL_PATH

TE-PCALC:bw 0, min_bw 0, metric:0

TE-PCALC:setup_pri 0, hold_pri 0

TE-PCALC:affinity_bits 0x0, affinity_mask 0xFFFF

TE-PCALC_PATH:create_path_hoplist:ip addr 10.42.0.6 unknown.

debug mpls traffic-eng topology change

To print information about traffic engineering topology change events, use the debug mpls traffic-eng topology change command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng topology change

no debug mpls traffic-eng topology change

Syntax Description

This command has no arguments or keywords.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)ST	This command was introduced.

Examples

In the following example, information is printed about traffic engineering topology change events:

Router# debug mpls traffic-eng topology change

TE-PCALC_LSA:NODE_CHANGE_UPDATE isis level-1

        link flags:LINK_CHANGE_BW 

        system_id:0001.0000.0001.00, my_ip_address:10.42.0.6

        nbr_system_id:0001.0000.0002.00, nbr_ip_address 10.42.0.10

debug mpls traffic-eng topology lsa

To print information about traffic engineering topology link state advertisement (LSA) events, use the debug mpls traffic-eng topology lsa command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng topology lsa

no debug mpls traffic-eng topology lsa

Syntax Description

This command has no arguments or keywords.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)ST	This command was introduced.

Examples

In the following example, information is printed about traffic engineering topology LSA events:

Router# debug mpls traffic-eng topology lsa

TE-PCALC_LSA:node_lsa_add:Received a LSA:flags 0x1 !

IGP Id:0001.0000.0001.00, MPLS TE Id:10.106.0.6 is VALID has 2 links (frag_id 0)

      link[0 ]:Nbr IGP Id:0001.0000.0001.02

          frag_id 0, Intf Address:0.0.0.0

          admin_weight:10, attribute_flags:0x0

      link[1 ]:Nbr IGP Id:0001.0000.0002.00

          frag_id 0, Intf Address:10.42.0.6, Nbr Intf Address:10.42.0.10

          admin_weight:100, attribute_flags:0x0

TE-PCALC_LSA:(isis level-1):Received lsa:

IGP Id:0001.0000.0001.00, MPLS TE Id:10.106.0.6 Router Node  id 8

      link[0 ]:Nbr IGP Id:0001.0000.0002.00, nbr_node_id:9, gen:114

          frag_id 0, Intf Address:10.42.0.6, Nbr Intf Address:10.42.0.10

          admin_weight:100, attribute_flags:0x0

          physical_bw:155520 (kbps), max_reservable_bw:5000 (kbps)

               allocated_bw   reservable_bw      allocated_bw   reservable_bw

               ------------   -------------      ------------   -------------

        bw[0]:0              5000         bw[1]:3000           2000         

        bw[2]:0              2000         bw[3]:0              2000         

        bw[4]:0              2000         bw[5]:0              2000         

        bw[6]:0              2000         bw[7]:0              2000 

debug mpls traffic-eng tunnels errors

To print information about errors encountered during any traffic engineering tunnel management procedure, use the debug mpls traffic-eng tunnels errors command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng tunnels errors [detail]

no debug mpls traffic-eng tunnels errors [detail]

Syntax Description

detail

(Optional) Prints detailed debugging information.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(3)T	This command was introduced.

Examples

In the following example, detailed debugging information is printed about errors encountered during a traffic engineering tunnel management procedure:

Router# debug mpls traffic-eng tunnels errors 

00:04:14: LSP-TUNNEL-SIG: Tunnel10012[1]: path verification failed (unprotected) [Can't 
use link 10.12.4.4 on node 10.0.0.4]

debug mpls traffic-eng tunnels events

To print information about traffic engineering tunnel management system events, use the debug mpls traffic-eng tunnels events command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng tunnels events [detail]

no debug mpls traffic-eng tunnels events [detail]

Syntax Description

detail

(Optional) Prints detailed debugging information.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T and the detail keyword was added.

Examples

In the following example, detailed debugging information is printed about traffic engineering tunnel management system events:

Router# debug mpls traffic-eng tunnels events detail

LSP-TUNNEL:received event:interface admin. down [Ethernet4/0/1]

LSP-TUNNEL:posting action(s) to all-tunnels:

              check static LSPs

LSP-TUNNEL:scheduling pending actions on all-tunnels

LSP-TUNNEL:applying actions to all-tunnels, as follows:

              check static LSPs

debug mpls traffic-eng tunnels labels

To print information about Multiprotocol Label Switching (MPLS) label management for traffic engineering tunnels, use the debug mpls traffic-eng tunnels labels command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng tunnels labels [detail] [acl-number]

no debug mpls traffic-eng tunnels labels [detail] [acl-number]

Syntax Description

detail	(Optional) Prints detailed debugging information.
acl-number	(Optional) Uses the specified access list to filter the debugging information. Prints information only about traffic engineering tunnels that match the access list.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T, and the detail keyword and the acl-number argument were added.

Examples

In the following example, detailed debugging information is printed about MPLS label management for traffic engineering tunnels:

Router# debug mpls traffic-eng tunnels labels detail

LSP-TUNNEL-LABELS:tunnel 10.106.0.6 1 [2]:fabric PROGRAM request

LSP-TUNNEL-LABELS:tunnel 10.106.0.6 1 [2]:programming label 16 on output interface 
ATM0/0.2

LSP-TUNNEL-LABELS:descriptor 71FA64:continuing "Program" request

LSP-TUNNEL-LABELS:descriptor 71FA64:set "Interface Point Out State" to, allocated

LSP-TUNNEL-LABELS:# of resource points held for "default" interfaces:2

LSP-TUNNEL-LABELS:descriptor 71FA64:set "Fabric State" to, enabled

LSP-TUNNEL-LABELS:descriptor 71FA64:set "Fabric Kind" to, default (LFIB)

LSP-TUNNEL-LABELS:descriptor 71FA64:set "Fabric State" to, set

LSP-TUNNEL-LABELS:tunnel 10.106.0.6 1 [2]:fabric PROGRAM reply

To restrict output to information about a single tunnel, you can configure an access list and supply it to the debug command. Configure the access list as follows:

Router(config-ext-nacl)# permit udp host scr_address host dst_address eq tun intfc

For example, if tunnel 10012 has destination 10.0.0.11 and source 10.0.0.4, as determined by the show mpls traffic-eng tunnels command, the following access list could be configured and added to the debug command:

Router(config-ext-nacl)# permit udp host 10.0.0.4 10.0.0.11 eq 10012

debug mpls traffic-eng tunnels reoptimize

To print information about traffic engineering tunnel reoptimizations, use the debug mpls traffic-eng tunnels reoptimize command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng tunnels reoptimize [detail] [acl-number]

no debug mpls traffic-eng tunnels reoptimize [detail] [acl-number]

Syntax Description

detail	(Optional) Prints detailed debugging information.
acl-number	(Optional) Uses the specified access list to filter the debugging information. Prints information about only those traffic engineering tunnel reoptimizations that match the access list.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T, and the detail keyword and the acl-number argument were added.

Examples

In the following example, detailed debugging information is printed about traffic engineering tunnel reoptimizations that match access list number 101:

Router# debug mpls traffic-eng tunnels reoptimize detail 101

LSP-TUNNEL-REOPT:Tunnel1 curr option 2 (0x6175CF8C), activate new option 2

LSP-TUNNEL-REOPT:Tunnel1 new path:option 2 [10002], weight 20

LSP-TUNNEL-REOPT:Tunnel1 old path:option 2 [2], weight 110

LSP-TUNNEL-REOPT:Tunnel1 [10002] set as reopt

LSP-TUNNEL-REOPT:Tunnel1 path option 2 [10002] installing as current

LSP-TUNNEL-REOPT:Tunnel1 [2] removed as current

LSP-TUNNEL-REOPT:Tunnel1 [2] set to delayed clean

LSP-TUNNEL-REOPT:Tunnel1 [10002] removed as reopt

LSP-TUNNEL-REOPT:Tunnel1 [10002] set to current

debug mpls traffic-eng tunnels signalling

To print information about traffic engineering tunnel signalling operations, use the debug mpls traffic-eng tunnels signalling command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng tunnels signalling [detail] [acl-number]

no debug mpls traffic-eng tunnels signalling [detail] [acl-number]

Syntax Description

detail	(Optional) Prints detailed debugging information.
acl-number	(Optional) Uses the specified access list to filter the debugging information. Prints information about only those traffic engineering tunnel signalling operations that match the access list.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T, and the detail keyword and the acl-number argument were added.

Examples

In the following example, detailed debugging information is printed about traffic engineering tunnel signalling operations that match access list number 101:

Router# debug mpls traffic-eng tunnels signalling detail 101

LSP-TUNNEL-SIG:tunnel Tunnel1 [2]:RSVP head-end open

LSP-TUNNEL-SIG:tunnel Tunnel1 [2]:received Path NHOP CHANGE 

LSP-TUNNEL-SIG:Tunnel1 [2]:first hop change:0.0.0.0 --> 10.1.0.10

LSP-TUNNEL-SIG:received ADD RESV request for tunnel 10.106.0.6 1 [2]

LSP-TUNNEL-SIG:tunnel 10.106.0.6 1 [2]:path next hop is 10.1.0.10 (Et4/0/1)

LSP-TUNNEL-SIG:Tunnel1 [2] notified of new label information

LSP-TUNNEL-SIG:sending ADD RESV reply for tunnel 10.106.0.6 1 [2]

debug mpls traffic-eng tunnels state

To print information about state maintenance for traffic engineering tunnels, use the debug mpls traffic-eng tunnels state command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng tunnels state [detail] [acl-number]

no debug mpls traffic-eng tunnels state [detail] [acl-number]

Syntax Description

detail	(Optional) Prints detailed debugging information.
acl-number	(Optional) Uses the specified access list to filter the debugging information. Prints information about state maintenance for traffic engineering tunnels that match the access list.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.1(3)T	This command was introduced.

Examples

In the following example, detailed debugging information is printed about state maintenance for traffic engineering tunnels that match access list number 99:

Router# debug mpls traffic-eng tunnels state detail 99

LSP-TUNNEL:tunnel 10.106.0.6 1 [2]: "Connected" -> "Disconnected"

LSP-TUNNEL:Tunnel1 received event:LSP has gone down

LSP-TUNNEL:tunnel 10.106.0.6 1 [2]: "Disconnected" -> "Dead"

LSP-TUNNEL-SIG:Tunnel1:changing state from up to down

LSP-TUNNEL:tunnel 10.106.0.6 1 [2]: "Dead" -> "Connected"

debug mpls traffic-eng tunnels timers

To print information about traffic engineering tunnel timer management, use the debug mpls traffic-eng tunnels timers command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls traffic-eng tunnels timers [detail] [acl-number]

no debug mpls traffic-eng tunnels timers [detail] [acl-number]

Syntax Description

detail	(Optional) Prints detailed debugging information.
acl-number	(Optional) Uses the specified access list to filter the debugging information. Prints information about traffic engineering tunnel timer management that matches the access list.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)S	This command was introduced.
12.1(3)T	This command was integrated into Cisco IOS Release 12.1(3)T, and the detail keyword and the acl-number argument were added.

Examples

In the following example, detailed debugging information is printed about traffic engineering tunnel timer management:

Router# debug mpls traffic-eng tunnels timers detail

LSP-TUNNEL-TIMER:timer fired for Action Scheduler

LSP-TUNNEL-TIMER:timer fired for Tunnel Head Checkup

debug mpls xtagatm cross-connect

To display requests and responses for establishing and removing cross-connects on the controlled ATM switch, use the debug mpls xtagatm cross-connect command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls xtagatm cross-connect

no debug mpls xtagatm cross-connect

Syntax Description

This command has no arguments or keywords.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)T	This command was introduced.
12.2(4)T	This command was updated to reflect the Multiprotocol Label Switching (MPLS) Internet Engineering Task Force (IETF) terminology.

Usage Guidelines

This command monitors requests to establish or remove cross-connects from XmplsATM interfaces to the Virtual Switch Interface (VSI) master, as well as the VSI master responses to these requests.

---

Note Use this command with care, because it generates output for each cross-connect operation performed by the label switch controller (LSC). In a network configuration with many label virtual circuits (LVCs), the volume of output generated can interfere with system timing and the proper operation of other router functions. Use this command only in situations in which the LVC setup or teardown rate is low.

---

Examples

The following is sample output from the debug mpls xtagatm cross-connect command:

Router# debug mpls xtagatm cross-connect

XTagATM: cross-conn request; SETUP, userdata 0x17, userbits 0x1, prec 7

        0xC0100 (Ctl-If) 1/32 <-> 0xC0200 (XTagATM0) 0/32

XTagATM: cross-conn response; DOWN, userdata 0x60CDCB5C, userbits 0x2, result 

OK

        0xC0200 1/37 --> 0xC0300 1/37

Table 215 describes the significant fields shown in the display.

Table 215 debug mpls xtagatm cross-connect Field Descriptions

Field	Description
XTagATM	The source of the debugging message as an XmplsATM interface.
cross-conn	An indicator that the debugging message pertains to a cross-connect setup or teardown operation.
request	A request from an XmplsATM interface to the VSI master to set up or tear down a cross-connect.
response	Response from the VSI master to an XmplsATM interface that a cross-connect was set up or removed.
SETUP	A request for the setup of a cross-connect.
TEARDOWN	A request for the teardown of a cross-connect.
UP	The cross-connect is established.
DOWN	The cross-connect is not established.
userdata, userbits	Values passed with the request that are returned in the corresponding fields in the matching response.
prec	The precedence for the cross-connect.
result	The status of the completed request.
0xC0100 (Ctl-If) 1/32	Information about the interface: •One endpoint of the cross-connect is on the interface whose logical interface number is 0xC0100. •The interface is the VSI control interface. •The virtual path identifier (VPI) value at this endpoint is 1. •The virtual channel identifier (VCI) value at this end of the cross-connect is 32.
<->	The type of cross-connect (unidirectional or bidirectional).
0xC0200 (XTagATM0) 0/32	Information about the interface: •The other endpoint of the cross-connect is on the interface whose logical interface number is 0xC0200. •The interface is associated with XmplsATM interface 0. •The VPI value at this endpoint is 0. •The VCI value at this end of the cross-connect is 32.
->	The response pertains to a unidirectional cross-connect.

Related Commands

Command	Description
show xtagatm cross-connect	Displays information about remotely connected ATM switches.

debug mpls xtagatm errors

To display information about error and abnormal conditions that occur on XmplsATM interfaces, use the debug mpls xtagatm errors command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls xtagatm errors

no debug mpls xtagatm errors

Syntax Description

This command has no arguments or keywords.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)T	This command was introduced.
12.2(4)T	This command was updated to reflect the Multiprotocol Label Switching (MPLS) Internet Engineering Task Force (IETF) terminology.

Usage Guidelines

Use the debug mpls xtagatm errors command to display information about abnormal conditions and events that occur on XmplsATM interfaces.

Examples

The following is sample output from the debug mpls xtagatm errors command:

Router# debug mpls xtagatm errors

XTagATM VC: XTagATM0 1707 2/352 (ATM1/0 1769 3/915): Cross-connect setup 

failed NO_RESOURCES

This message indicates a failed attempt to set up a cross-connect for a terminating a virtual circuit (VC) on XmplsATM0. The reason for the failure was a lack of resources on the controlled ATM switch.

debug mpls xtagatm events

To display information about major events that occur on XmplsATM interfaces, not including events for specific XmplsATM virtual circuits (VCs) and switch cross-connects, use the debug mpls xtagatm events command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls xtagatm events

no debug mpls xtagatm events

Syntax Description

This command has no arguments or keywords.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Command	Modification
12.0(5)T	This command was introduced.
12.2(4)T	This command was updated to reflect the Multiprotocol Label Switching (MPLS) Internet Engineering Task Force (IETF) terminology.

Usage Guidelines

Use the debug mpls xtagatm events command to monitor major events that occur on XmplsATM interfaces. This command monitors events that pertain only to XmplsATM interfaces as a whole and does not include any events that pertain to individual XmplsATM VCs or individual switch cross-connects. The specific events that are monitored when the debug mpls xtagatm events command is in effect include the following:

•Receiving asynchronous notifications that the VSI master sent through the external ATM application programming interface (ExATM API) to an XmplsATM interface.

•Resizing of the table that is used to store switch cross-connect information. This table is resized automatically as the number of cross-connects increases.

•Marking of XmplsATM VCs as stale when an XmplsATM interface shuts down, thereby ensuring that the stale interfaces are refreshed before new XmplsATM VCs can be created on the interface.

Examples

The following is sample output from the debug mpls xtagatm events command:

Router# debug mpls xtagatm events

XTagATM: desired cross-connect table size set to 256

XTagATM: ExATM API intf event Up, port 0xA0100 (None)

XTagATM: ExATM API intf event Down, port 0xA0100 (None)

XTagATM: marking all VCs stale on XTagATM0

Table 216 describes the significant fields shown in the display.

Table 216 debug mpls xtagatm events Field Descriptions

Field	Description
XTagATM	The source of the debugging message.
desired cross-connect table size set to 256	The table of cross-connect information has been set to hold 256 entries. A single cross-connect table is shared among all XmplsATM interfaces. The cross-connect table is automatically resized as the number of cross-connects increases.
ExATM API	The information in the debug output pertains to an asynchronous notification sent by the Virtual Switch Interface (VSI) master to the XmplsATM driver.
event Up/Down	The specific event that was sent by the VSI master to the XmplsATM driver.
port 0xA0100 (None)	The event pertains to the VSI interface whose logical interface number is 0xA0100, and that this logical interface is not bound to an XmplsATM interface.
marking all VCs stale on XTagATM0	All existing XmplsATM VCs on interface XmplsATM0 are marked as stale, and that XmplsATM0 remains down until all of these VCs are refreshed.

debug mpls xtagatm vc

To display information about events that affect individual XmplsATM terminating virtual circuits (VCs), use the debug mpls xtagatm vc command in privileged EXEC mode. To disable debugging output, use the no form of this command.

debug mpls xtagatm vc

no debug mpls xtagatm vc

Syntax Description

This command has no arguments or keywords.

Defaults

No default behavior or values

Command Modes

Privileged EXEC

Command History

Release	Modification
12.0(5)T	This command was introduced.
12.2(4)T	This command was updated to reflect the Multiprotocol Label Switching (MPLS) Internet Engineering Task Force (IETF) terminology.

Usage Guidelines

Use the debug mpls xtagatm vc command to display detailed information about all events that affect individual XmplsATM terminating VCs.

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Note Use this command with care, because it results in extensive output when many XmplsATM VCs are set up or torn down. This output can interfere with system timing and normal operation of other router functions. Use the debug mpls xtagatm vc command only when a few XmplsATM VCs are created or removed.

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Examples

The following is sample output from the debug mpls xtagatm vc command:

Router# debug mpls xtagatm vc

XTagATM VC: XTagATM1 18 0/32 (ATM1/0 0 0/0):  Setup,  Down --> UpPend 

XTagATM VC: XTagATM1 18 0/32 (ATM1/0 88 1/32):  Complete,  UpPend --> Up 

XTagATM VC: XTagATM1 19 1/33 (ATM1/0 0 0/0):  Setup,  Down --> UpPend 

XTagATM VC: XTagATM0 43 0/32 (ATM1/0 67 1/84):  Teardown,  Up --> DownPend 

Table 217 describes the significant fields shown in the display.

Table 217 debug mpls xtagatm vc Field Descriptions

Field	Description
XTagATM VC	The source of the debugging message.
XTagATM <ifnum>	The particular XmplsATM interface number for the terminating VC.
vcd vpi/vci	The virtual circuit descriptor (VCD) and virtual path identifier/virtual channel identifier (VPI/VCI) values for the terminating VC.
(ctl-if vcd vpi/vci)	The control interface, the VCD, and the VPI and VCI values for the private VC corresponding to the XmplsATM VC on the control interface.
Setup, Complete, Teardown	The name of the event that occurred for the indicated VC.
oldstate -> newstate	The state of the terminating VC before and after the processing of the event.