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Catalyst 4500 Series Command Reference, 7.5
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Switch and ROM Monitor Commands¿Release 7.5
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Index
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Preface
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Command-Line Interface
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alias through copy
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del through session
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set through set dot1x
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set enablepass through set logging history
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set logging level through set pvlan
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set pvlan mapping through set spantree portpri
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set spantree portvlancost through set vtp pruning
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show accounting through show counters
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show crypto key through show multicast protocols status
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show multicast router through show pvlan mapping
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show qos info through show test
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show time through write terminal
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Acronyms
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Table Of Contents
show multicast router
To display which ports have Cisco Group Management Protocol (CGMP) capable routers assigned to them, use the show multicast router command.
show multicast router [cgmp | rgmp] [mod/port] [vlan_id]
Syntax Description
Defaults
This command has no default settings.
Command Types
Switch command
Command Modes
Normal
Examples
This example show how to display the multicast router configuration:
Console> show multicast routerPort Vlan---------- ----------------Total Number of Entries = 0'*' - Configured'+' - RGMP-capableConsole> (enable)This example show how to display the multicast router configuration for VLAN 99:
Console> show multicast router 99Port Vlan---------- ----------------Total Number of Entries = 0'*' - ConfiguredConsole>This example shows how to display only the configuration information learned through CGMP:
Console> show multicast router cgmpCMGP Feature is enabled.Console>Table 2-28 describes the fields in the show multicast router command output.
Related Commands
clear multicast router
set cgmp
set multicast router
show multicast group countshow netstat
To display the currently active network connections and to list statistics for the various protocols, use the show netstat command.
show netstat [tcp | udp | ip | icmp | routes | stats | interfaces]
Syntax Description
Defaults
This command has no default settings.
Command Types
Switch command
Command Modes
Normal
Usage Guidelines
Counter information for me1 is viewed by entering the show netstat interfaces command.
Examples
This example shows how to display the current active network connections:
Console> show netstatActive Internet connections (including servers)Proto Recv-Q Send-Q Local Address Foreign Address (state)tcp 0 128 172.20.25.142.23 171.68.10.75.44720 ESTABLISHEDtcp 0 0 *.7161 *.* LISTENtcp 0 0 *.23 *.* LISTENudp 0 0 *.* *.*udp 0 0 *.161 *.*udp 0 0 *.123 *.*Console>This example shows how to display TCP statistics:
Console> show netstat tcptcp:5122 packets sent4642 data packets (102292 bytes)28 data packets (6148 bytes) retransmitted434 ack-only packets (412 delayed)0 URG only packets0 window probe packets1 window update packet17 control packets7621 packets received4639 acks (for 103883 bytes)69 duplicate acks0 acks for unsent data3468 packets (15367 bytes) received in-sequence12 completely duplicate packets (20 bytes)0 packets with some dup. data (0 bytes duped)4 out-of-order packets (0 bytes)0 packets (0 bytes) of data after window0 window probes0 window update packets0 packets received after close0 discarded for bad checksums0 discarded for bad header offset fields0 discarded because packet too short6 connection requests6 connection accepts10 connections established (including accepts)11 connections closed (including 1 drop)2 embryonic connections dropped4581 segments updated rtt (of 4600 attempts)28 retransmit timeouts0 connections dropped by rexmit timeout0 persist timeouts66 keepalive timeouts63 keepalive probes sent3 connections dropped by keepaliveConsole>Table 2-29 describes the fields in the show netstat tcp command output.
This example shows how to display UDP statistics:
Console> show netstat udpudp:0 incomplete headers0 bad data length fields0 bad checksums0 socket overflows1116 no such portsConsole>Table 2-30 describes the fields in the show netstat udp command output.
This example shows how to display IP statistics:
Console> show netstat ipip:76894 total packets received0 bad header checksums0 with size smaller than minimum0 with data size < data length0 with header length < data size0 with data length < header length0 fragments received0 fragments dropped (dup or out of space)0 fragments dropped after timeout0 packets forwarded0 packets not forwardable0 redirects sentConsole>Table 2-31 describes the fields in the show netstat ip command output.
This example shows how to display ICMP statistics:
Console> show netstat icmpicmp:Redirect enabled0 calls to icmp_error0 errors not generated 'cuz old message was icmpOutput histogram:echo reply: 10011 message with bad code fields0 messages < minimum length0 bad checksums0 messages with bad lengthInput histogram:echo reply: 12destination unreachable: 3961echo: 10011001 message responses generatedConsole>Table 2-32 describes the fields in the show netstat icmp command output.
This example shows how to display the IP routing table:
Console> show netstat routesDESTINATION GATEWAY FLAGS USE INTERFACEdefault 172.16.1.201 UG 6186 sc0172.16.0.0 172.16.25.142 U 6383 sc0default default UH 0 sl0Console>Table 2-33 describes the fields in the show netstat routes command output.
This example shows how to display interface statistics:
Console> show netstat interfaceInterface InPackets InErrors OutPackets OutErrorssl0 0 0 0 0sc0 33 0 117192 0me1 2 0 57075 0Interface Rcv-Octet Xmit-Octet--------- -------------------- --------------------sc0 2389 0me1 1172 0sl0 0 0Interface Rcv-Unicast Xmit-Unicast--------- -------------------- --------------------sc0 28 0me1 28 0sl0 0 0Console>Table 2-34 describes the fields in the show netstat interface command output.
Related Commands
set interface
set ip route—switchshow ntp
To display the current Network Time Protocol (NTP) status, use the show ntp command.
show ntp
Syntax Description
This command has no arguments or keywords.
Defaults
This command has no default settings.
Command Types
Switch command
Command Modes
Normal
Examples
This example shows how to display the current NTP status:
Console> show ntpCurrent time: Thu Jan 15 1999, 11:19:03 pstTimezone: 'pst', offset from UTC is -8 hoursSummertime: 'pst', enabledLast NTP update:Broadcast client mode: enabledBroadcast delay: 3000 microsecondsClient mode: disabledAuthentication: enabledNTP-Server Server Key---------------------------------------- ----------172.20.33.140 1722033140172.20.33.114 1722033114Console>The following output appears in the show ntp command output when entered from privileged mode:
Key Number Mode Key String---------- --------- --------------------------------1234 trusted 324234234231722033140 untrusted termserv-amConsole>Table 2-35 describes the fields in the show ntp command output.
Related Commands
clear ntp key
clear ntp server
set ntp broadcastclient
set ntp broadcastdelay
set ntp client
set ntp key
set ntp servershow port
To display port status and counters, use the show port command.
show port [mod[/port]]
Syntax Description
Defaults
This command has no default settings.
Command Types
Switch command
Command Modes
Normal
Usage Guidelines
If you do not specify a mod, the ports on all modules are shown.
If you do not specify a port, all the ports on the module are shown.
In the Status field for the switch ports, the following applies:
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connected indicates the port is operational.
Note
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In the show port command display, the combination of the 32-port module (WS-X4502) and 4-port 100FX card results in an entry that lists 36 ports. If the uplink card is not installed, only ports 1 through 32 are listed.
Although me1 resides on the supervisor engine module for the Catalyst 4000 family switches, me1 port information is not displayed by the show module or show port CLI commands.
Examples
This example shows how to display the status and counters for ports on module 2:
Console> show port 3/1Port Name Status Vlan Duplex Speed Type----- -------------------- ---------- ---------- ------ ----- ------------3/1 connected 99 a-half a-10 10/100BaseTXPort AuxiliaryVlan AuxVlan-Status InlinePowered PowerAllocatedAdmin Oper Detected mWatt mA @42V----- ------------- -------------- ----- ------ -------- ----- --------3/1 none none - - - - -Port Security Violation Shutdown-Time Age-Time Max-Addr Trap IfIndex----- -------- --------- ------------- -------- -------- -------- -------3/1 disabled shutdown 0 0 1 disabled 1043Port Num-Addr Secure-Src-Addr Age-Left Last-Src-Addr Shutdown/Time-Left----- -------- ----------------- -------- ----------------- ------------------3/1 0 - - - - -Port Broadcast-Limit Multicast Unicast Total-Drop errdisable-------- --------------- --------- ------- -------------------- ----------3/1 75.00 % - - 0 disabledPort Send FlowControl Receive FlowControl RxPause TxPauseadmin oper admin oper----- -------- -------- --------- --------- ---------- ----------3/1 off off off off 0 0Port Status Channel Admin ChMode Group Id----- ---------- -------------------- ----- -----3/1 connected auto silent 163 0Port Status ErrDisableReason Port ErrDisableTimeout Action on Timeout---- ---------- ---------------- ---------------------- -----------------3/1 connected - Enable No ChangePort Align-Err FCS-Err Xmit-Err Rcv-Err UnderSize----- ---------- ---------- ---------- ---------- ---------3/1 0 0 0 0 0Port Single-Col Multi-Coll Late-Coll Excess-Col Carri-Sen Runts Giants----- ---------- ---------- ---------- ---------- --------- --------- ---------3/1 0 0 0 0 0 0 0Port Last-Time-Cleared----- --------------------------3/3 Fri Oct 19 2001, 12:31:28> >>Console>Table 2-36 describes the possible fields (depending on the port type queried) in the show port command output.
Table 2-36 show port Command Output Fields
Port
Module and port number.
Name
Name (if configured) of the port.
Status
Status of the port. For the Catalyst 4000 family and Catalyst 2948G switches, possible displays are connected, notconnect, faulty, remfault, disable, remdisable, configerr, remcfgerr, reflector, and disagree.
Vlan
VLANs to which the port belongs.
Duplex
Duplex setting for the port (auto, full, fdx, half, hdx, a-half, a-hdx, a-full, or a-fdx).
Speed
Speed setting for the port Valid values are auto, 10, 100, 155, a-10, a-100, 4, 16, a-14,or a-16.
Type1
Port type, for example, 100BASE-FX MM, 100BASE-FX SM, 10/100BASE-TX.
Security
Status of whether port security is enabled or disabled.
Secure-Src-Addr
Secure MAC address for the security enabled port.
Last-Src-Addr
Source MAC address of the last packet received by the port.
Shutdown
Status of whether the port was shut down because of security.
Trap
Status of whether port trap is enabled or disabled.
IfIndex
Number of the ifIndex.
Broadcast-Limit
Broadcast threshold configured for the port.
Broadcast-Drop
Number of broadcast/multicast packets dropped because the broadcast limit for the port was exceeded.
Send admin
Flow-control administration. Possible settings: on indicates the local port sends flow control to the far end; off indicates the local port does not send flow control to the far end; desired indicates the local end sends flow control to the far end if the far end supports it.
FlowControl oper
Flow-control operation. Possible setting: disagree indicates the two ports could not agree on a link protocol.
Receive admin
Flow-control administration. Possible settings: on indicates the local port requires the far end to send flow control; off indicates the local port does not allow the far end to send flow control; desired indicates the local end allows the far end to send flow control.
FlowControl oper
Flow-control operation. Possible setting: disagree indicates the two ports could not agree on a link protocol.
RxPause
Number of Pause frames received.
TxPause
Number of Pause frames transmitted.
Unsupported Opcodes
Number of unsupported operating codes.
Align-Err
Number of frames with alignment errors (frames that do not end with an even number of octets and have a bad CRC) received on the port.
FCS-Err
The number of valid size frames with FCS errors but no framing errors.
Xmit-Err
Number of transmit errors that occurred on the port (indicating that the internal transmit buffer is full).
Rcv-Err
Number of receive errors that occurred on the port (indicating that the internal receive buffer is full).
UnderSize
Number of received frames less than 64 octets long (but are otherwise well-formed).
Single-Col
Number of times one collision occurred before the port transmitted a frame to the media successfully.
Multi-Coll
Number of times multiple collisions occurred before the port transmitted a frame to the media successfully.
Late-Coll
Number of late collisions (collisions outside the collision domain).
Excess-Col
Number of excessive collisions that occurred on the port (indicating that a frame encountered 16 collisions and was discarded).
Carri-Sen
Number of times the port sensed a carrier (to determine whether the cable is currently being used).
Runts
Number of received runt frames (frames that are smaller than the minimum IEEE 802.3 frame size) on the port.
Giants
Number of received giant frames (frames that exceed the maximum IEEE 802.3 frame size) on the port.
Last-Time-Cleared
Last time the port counters were cleared.
Auto-Part
The number of times the port entered the auto-partition state due to excessive consecutive collisions.
Data-rate mismatch
The number of valid size frames experienced overrun or underrun.
Src-addr change
The number of times the last source address changed.
Good-bytes
The total number of octets in frames with no error.
Short-event
The number of times activity with a duration less than the ShortEventMax Time (74 to 82 bit times) is detected.
ErrDisableReason
Reason for the port to in errdisabled state
Action on Timeout
Action that will be taken on errdisable timer timeout
1 These fields will change according to the system configuration.
show port auxiliaryvlan
To display the port auxiliary VLAN status for a specific port, use the show port auxiliaryvlan command.
show port auxiliaryvlan [vlan | untagged | none]
Syntax Description
Defaults
This command has no default settings.
Command Types
Switch command
Command Modes
Privileged
Usage Guidelines
This command is not supported by the NAM.
Examples
This example shows how to display the port information for all auxiliary VLANs:
Console> (enable) show port auxiliaryvlanAuxiliaryVlan AuxVlanStatus Mod/Ports------------- ------------- ------------------------------------------------222 active 2/4-7333 active 2/13-18dot1p dot1p 2/23,8/31-34untagged untagged 3/12none none 2/1-3,2/8-12,2/19-22,2/24-30,2/35-48,3/1-11,3/13-48This example shows how to display the port information for a specific auxiliary VLAN:
Console> (enable) show port auxiliaryvlan 123AuxiliaryVlan AuxVlanStatus Mod/Ports------------- ------------- -------------------------123 active 1/2,2/1-3Console> (enable)This example shows how to display the status of the switch that does not send any auxiliary VLAN information in the CDP packets:
Console> (enable) show port auxiliaryvlan noneAuxiliaryVlan AuxVlanStatus Mod/Ports------------- ------------- ------------------------------------------------none none 2/1-3,2/8-12,2/19-22,2/24-30,2/35-48,3/1-11,3/13-48Console> (enable)This example shows how to display the status of the switch that sends untagged packets:
Console> (enable) show port auxiliaryvlan untaggedAuxiliaryVlan AuxVlanStatus Mod/Ports------------- ------------- -------------------------untagged untagged 3/12Console> (enable)Table 2-37 describes the possible fields (depending on the port type queried) in the show port auxiliaryvlan command output.
Related Commands
show port capabilities
To display the port, type, duplex, trunking capabilities, and speed of the modules and ports in a switch, use the show port capabilities command.
show port capabilities [mod[/port]]
Syntax Description
Defaults
This command has no default settings.
Command Types
Switch command
Command Modes
Normal
Usage Guidelines
If you do not specify a mod_num, the ports on all modules are shown.
If you do not specify a /port_num, all the ports on the module are shown.
Examples
This example shows how to show the port capabilities for module 1, port 1:
Console> (enable) show port capabilities 1/1Model WS-X5530Port 1/1Type 10/100BaseTXSpeed auto,10,100Duplex half,fullTrunk encap type 802.1Q,ISLTrunk mode on,off,desirable,auto,nonegotiateChannel 1/1-2,1/1-4Broadcast suppression percentage(0-100)Flow control receive-(off,on),send-(off,on)Security yesMembership static,dynamicFast start yesQOS scheduling rx-(none),tx-(none)CoS rewrite yesToS rewrite IP-PrecedenceRewrite yesUDLD CapableVoice vlan noConsole> (enable)Table 2-38 describes the possible fields (depending on the type of port queried) and the values in the show port capabilities command output.
Table 2-38 show port capabilities Command Output Fields
Model
Module model number.
Port
Module number and port number.
Type1
Port type (for example, 100BASE-FX MM, 100BASE-FX SM, or 10/100BASE-TX).
Speed1
Port speed setting (for example, auto, 100, or 1000).
Duplex
Duplex mode (half, full, auto, fdx, hdx, or no).
Trunk encap type
Trunk encapsulation type (ISL, 802.1Q, 802.10, or no).
Trunk mode
Trunk administrative status of the port (on, off, auto, desirable, nonegotiate, or no).
Channel
Status of which ports can form a channel group. The ports are shown in mod_num/port_num format. For example, 3/1-2 indicates module 3, ports 1 and 2. In addition, any ports in range [mod/1-mod/high_port] or no ports may be indicated.
Broadcast suppression
Number of packets-per-second (pps) of broadcast/multicast traffic allowed on the port (0 to 150000) or the percentage of total available bandwidth that can be used by broadcast/multicast traffic (0 to 100).
Flow control
Flow-control options that can be set (receive-[off, on, desired], send-[off, on, desired], or no).
Security
Status of whether port security is enabled (yes or no).
Membership
Method of membership assignment of a port or range of ports to a VLAN (static or dynamic).
Fast Start
Status of whether the spanning tree port fast-start feature on the port is enabled (yes or no).
QoS Scheduling
(rx-(none),tx-(none)).
CoS Rewrite
Status of whether the port supports COS rewrite (yes or no).
ToS Rewrite
Status of whether the port supports TOS rewrite (IP-Precedence).
Rewrite
Status of whether the port supports inline rewrite (yes or no).
UDLD
Status of whether the port supports UDLD (Capable, Not capable).
Voice Vlan
Status of whether the port supports voice or VLAN (yes or no).
1 These fields will change depending on the system configuration.
Related Commands
set port channel
set port security
set port speed
set spantree portfast
set trunkshow port cdp
To display port Cisco Discovery Protocol (CDP) enable state and message interval on the port, use the show port cdp command.
show port cdp [mod[/port]]
Syntax Description
Defaults
This command has no default settings.
Command Types
Switch command
Command Modes
Normal
Usage Guidelines
If you do not specify a mod_num, the ports on all modules are shown. If you do not specify a /port_num, all the ports on the module are shown.
Examples
This example shows how to display CDP information for all ports:
Console> show port cdpCDP :enabledMessage Interval :60Hold Time :180Port CDP Status-------- ----------2/1 enabled2/2 enabled5/1 enabled5/2 enabled5/3 enabled5/4 enabled5/5 enabled5/6 enabledConsole>Table 2-39 describes the fields in the show port cdp command output.
Related Commands
show port channel
To display EtherChannel information for a specific module or port, use the show port channel command.
show port channel [mod[/port]] [statistics | info [spantree | trunk | protocol | gmrp | gvrp | qos]]
Syntax Description
Defaults
This command has no default settings.
Command Types
Switch command
Command Modes
Normal
Usage Guidelines
If the module and port are not specified, EtherChannel information is shown for all channeling ports on all modules.
Examples
This example shows how to display Fast EtherChannel information for port 1/4:
Console> show port channel 1/4Port Status Channel Admin ChMode Group Id----- ---------- -------------------- ----- -----1/1 connected auto silent 22 7691/2 connected auto silent 22 7691/4 connected auto silent 22 769----- ---------- -------------------- ----- -----Port Device-ID Port-ID Platform----- ------------------------------- ------------------------- ----------------1/1 069003103(4000) 3/13 WS-C40001/2 069003103(4000) 3/14 WS-C40001/4 069003103(4000) 3/16 WS-C4000----- ------------------------------- ------------------------- ----------------Console>Table 2-40 describes the fields in the show port channel output.
This example shows how to display PAgP packet statistics:
Console> show port channel statisticsPort Admin PAgP Pkts PAgP Pkts PAgP Pkts PAgP Pkts PAgP Pkts PAgP PktsGroup Transmitted Received InFlush RetnFlush OutFlush InError----- ------- ----------- --------- --------- --------- --------- ---------1/1 22 5063 5073 0 0 0 01/2 22 5062 5075 0 0 0 01/3 22 5068 5077 0 0 0 01/4 22 5076 5066 0 0 0 0----- ------- ----------- --------- --------- --------- --------- ---------Console>Table 2-41 describes the fields in the show port channel statistics output.
This example shows how to display EtherChannel configuration information:
Console> show port channel infoSwitch Frame Distribution Method: mac bothPort Status Channel Admin Channel Speed Duplex Vlanmode group id----- ---------- -------------------- ----- ------- ----- ------ ----1/1 connected auto silent 22 769 a-100 a-full 11/2 connected auto silent 22 769 a-100 a-full 11/3 connected auto silent 22 769 a-100 a-full 11/4 connected auto silent 22 769 a-100 a-full 1----- ---------- -------------------- ----- ------- ----- ------ ----Port ifIndex Oper-group Neighbor Oper-Distribution PortSecurity/Oper-group Method Dynamic port----- ------- ---------- ---------- ----------------- -------------1/1 626 1 mac both1/2 626 1 mac both1/3 626 1 mac both
