Cisco IOS Software Releases 12.2 SB

Table Of Contents

Cisco IOS Broadband High Availability In Service Software Upgrade

Contents

Prerequisites for Cisco IOS Broadband High Availability In Service Software Upgrade

Restrictions for Cisco IOS Broadband High Availability In Service Software Upgrade

Information About Cisco IOS Broadband High Availability In Service Software Upgrade

Feature Design of Cisco IOS Broadband High Availability In Service Software Upgrade

Supported Broadband Aggregation Protocols

ISSU PPPoA

ISSU PPPoE

ISSU RA-MLPS VPN

Benefits of Cisco IOS Broadband High Availability In Service Software Upgrade

How to Configure Cisco IOS Broadband High Availability In Service Software Upgrade

Configuring Subscriber Redundancy Policy for Cisco IOS Broadband High Availability In Service Software Upgrade

Prerequisites

Verifying and Troubleshooting Subscriber Redundancy Policy for Broadband HA ISSU

Configuration Examples for Cisco IOS Broadband High Availability In Service Software Upgrade

PPPoX Terminated into an RA-MPLS Network with ISSU: Example

Additional References

Related Documents

Standards

MIBs

RFCs

Technical Assistance

Command Reference

clear ppp subscriber statistics

clear pppatm statistics

clear pppoe statistics

debug pppatm redundancy

debug pppoe redundancy

show ccm clients

show ccm queues

show ccm sessions

show ppp subscriber statistics

show pppatm statistics

show pppoe statistics

subscriber redundancy

Feature Information for Cisco IOS Broadband High Availability In Service Software Upgrade

Cisco IOS Broadband High Availability In Service Software Upgrade

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First Published: December 4, 2006

Last Updated: December 4, 2006

The Cisco IOS Broadband High Availability (HA) In Service Software Upgrade feature ensures continuous operations of broadband access protocols on dual Route Processor (RP) Cisco 10000 series platforms during software upgrades, downgrades, and service enhancements.

Finding Feature Information in This Module

Your Cisco IOS software release may not support all of the features documented in this module. To reach links to specific feature documentation in this module and to see a list of the releases in which each feature is supported, use the "Feature Information for Cisco IOS Broadband High Availability In Service Software Upgrade" section.

Finding Support Information for Platforms and Cisco IOS and Catalyst OS Software Images

Use Cisco Feature Navigator to find information about platform support and Cisco IOS and Catalyst OS software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

Contents

•Prerequisites for Cisco IOS Broadband High Availability In Service Software Upgrade

•Restrictions for Cisco IOS Broadband High Availability In Service Software Upgrade

•Information About Cisco IOS Broadband High Availability In Service Software Upgrade

•How to Configure Cisco IOS Broadband High Availability In Service Software Upgrade

•Configuration Examples for Cisco IOS Broadband High Availability In Service Software Upgrade

•Additional References

•Command Reference

Prerequisites for Cisco IOS Broadband High Availability In Service Software Upgrade

•The Cisco 10000 series router must be configured with redundant Performance Routing Engine (PRE) modules, that is, dual Route Processors.

•Cisco IOS Release 12.2(31)SB2 or a later release must be running.

•The Cisco IOS stateful switchover (SSO) and nonstop forwarding (NSF) features must be enabled. For more information on SSO, see the document Stateful Switchover. For more information on NSF, see the document Cisco Nonstop Forwarding.

Restrictions for Cisco IOS Broadband High Availability In Service Software Upgrade

•You cannot perform an In Service Software Upgrade (ISSU) across Cisco IOS release trains.

•You cannot perform an ISSU from a Cisco IOS software version that is not ISSU-capable to a Cisco IOS software version that does support this capability.

Information About Cisco IOS Broadband High Availability In Service Software Upgrade

To configure the Cisco IOS Broadband High Availability In Service Software Upgrade feature, you should understand the following concepts:

•Feature Design of Cisco IOS Broadband High Availability In Service Software Upgrade

•Benefits of Cisco IOS Broadband High Availability In Service Software Upgrade

Feature Design of Cisco IOS Broadband High Availability In Service Software Upgrade

Prior to the implementation of the Cisco IOS Broadband High Availability In Service Software Upgrade feature in Cisco IOS Release 12.2(31)SB2, software upgrades typically required planned outages that took the router or network out of service. The Cisco IOS Broadband High Availability In Service Software Upgrade feature enables the service provider to maximize network availability and eliminate planned outages by allowing you to upgrade the Cisco IOS image without taking the router or network out of service. ISSU is a procedure, based on Cisco HA architecture, whereby the Cisco IOS infrastructure accomplishes an upgrade while packet forwarding continues and broadband sessions are maintained. Cisco high availability (HA) architecture is based on redundant Route Processors and the NSF and SSO features, such that ports stay active and calls do not drop, eliminating network disruption during upgrades.

The ISSU feature allows deployment of new features, hardware, services, and maintenance fixes in a procedure that is seamless to end users. A critical component of ISSU and Cisco HA technology is the cluster control manager (CCM) that manages session re-creation and synchronization on the standby processor. The Cisco IOS Broadband High Availability In Service Software Upgrade feature allows you to configure subscriber redundancy policies that tune the synchronization process. For more information see the "Configuring Subscriber Redundancy Policy for Cisco IOS Broadband High Availability In Service Software Upgrade" section.

The Cisco IOS Broadband High Availability In Service Software Upgrade feature handles upgrades and downgrades, and supports the following:

•Upgrades from one software feature release to another, as long as both versions support the ISSU feature, for example from Cisco IOS Release 12.2(28)SB to Cisco IOS Release 12.2(31)SB2.

•Upgrades from one software maintenance release to another, for example from Cisco IOS Release 12.2(28)SB1 to Cisco IOS Release 12.2(28)SB2

---

Note Software upgrades and downgrades are supported only within the major Cisco IOS releases; crossing between the S and T or Mainline Cisco IOS releases, for example from Cisco IOS release 12.4(11)T and Cisco IOS release 12.2(31)SB, is not supported even if each release supports ISSU capability. For more information on Cisco IOS releases , see Cisco IOS Reference Guide.

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The Cisco IOS Broadband High Availability In Service Software Upgrade feature works with other Cisco IOS HA features, nonstop forwarding and stateful switchover, to maintain broadband sessions.

For more information on performing an ISSU, see the document Cisco IOS In Service Software Upgrade Process.

Supported Broadband Aggregation Protocols

The Cisco IOS Broadband High Availability In Service Software Upgrade feature supports the following broadband aggregation protocols:

•ISSU PPPoA

•ISSU PPPoE

•ISSU RA-MLPS VPN

ISSU PPPoA

The Cisco IOS Broadband High Availability In Service Software Upgrade feature delivers ISSU capability for (PPPoA) sessions during supported software upgrades, downgrades and enhancements.

ISSU PPPoE

The Cisco IOS Broadband High Availability In Service Software Upgradefeature delivers ISSU capability for PPP over Ethernet (PPPoE) subscriber access sessions, including PPPoE, PPPoEVLAN, and PPPoE802.1q-in-q sessions, during supported software upgrades, downgrades and enhancements.

ISSU RA-MLPS VPN

The Cisco IOS Broadband High Availability In Service Software Upgrade feature delivers ISSU capability for PPPoA and PPPoE (PPPoX) sessions terminated into remote access (RA)- Multiprotocol Label Switching (MPLS) virtual private networks (VPN) or PPPoX into MPLS VPN during supported software upgrades, downgrades and enhancements.

Figure 1 shows a typical broadband aggregation HA deployment with ISSU functionality.

Figure 1 Broadband Aggregation High Availability Deployment

Benefits of Cisco IOS Broadband High Availability In Service Software Upgrade

•Eliminates network downtime for Cisco IOS software image upgrades.

•Eliminates resource scheduling challenges associated with planned outages and late night maintenance windows.

•Accelerates deployment of new services and applications and allows faster implementation of new features, hardware, and fixes.

•Reduces operating costs due to outages while delivering higher service levels.

•Provides additional options for adjusting maintenance windows.

•Minimizes the impact of upgrades to service and allows for faster upgrades, resulting in higher availability.

How to Configure Cisco IOS Broadband High Availability In Service Software Upgrade

This section contains the following procedures:

•Configuring Subscriber Redundancy Policy for Cisco IOS Broadband High Availability In Service Software Upgrade

•Verifying and Troubleshooting Subscriber Redundancy Policy for Broadband HA ISSU

Configuring Subscriber Redundancy Policy for Cisco IOS Broadband High Availability In Service Software Upgrade

The Cisco IOS Broadband High Availability In Service Software Upgrade feature is enabled by default. This task configures subscriber redundancy policy for HA ISSU capability, allowing you to manage synchronization between HA active and standby processors.

Prerequisites

For more information on performing the ISSU process, see the document Cisco IOS In Service Software Upgrade Process.

SUMMARY STEPS

1. enable

2. configure terminal

3. subscriber redundancy [bulk limit cpu percentage delay seconds allow value] [dynamic limit cpu percentage delay seconds allow value] [delay time] [rate sessions time]

4. exit

DETAILED STEPS

	Command or Action	Purpose
Step 1	enable Example: Router> enable	Enables privileged EXEC mode. •Enter your password if prompted.
Step 2	configure terminal Example: Router# configure terminal	Enters global configuration mode.
Step 3	subscriber redundancy [bulk limit cpu percentage delay seconds allow value][dynamic limit cpu percentage delay seconds allow value][delay time][rate sessions time] Example: Router(config)# subscriber redundancy bulk limit cpu 75 delay 20 allow 30	(Optional) Configures subscriber redundancy policy. •bulk—Configures bulk synchronization redundancy policy. •limit cpu percentage—Specifies CPU busy threshold value as a percentage. Range 0 to 100, default is 90. •delay seconds—Specifies delay in seconds before the CCM component synchronizes sessions after the CPU busy threshold is exceeded. •allow value—Specifies the minimum number of sessions to synchronize once the CPU busy threshold is exceeded and the specified delay is met. Range is 1 to 2147483637; default is 25. •dynamic—Configures dynamic synchronization redundancy policy. •delay time—Specifies minimum amount of time in seconds that a session must be ready before dynamic synchronization occurs. Range is 1 to 33550. •rate sessions time—Specifies number of sessions per time period for bulk and dynamic synchronization. –sessions—Range is 1 to 32000; default is 250. –time—Range in seconds is 1 to 33550; default is 1.
Step 4	exit Example: Router(config)# exit	Exits the current configuration mode.

Verifying and Troubleshooting Subscriber Redundancy Policy for Broadband HA ISSU

To verify the subscriber redundancy policy configuration, use the show running-config command. Sample output is located in the "Configuration Examples for Cisco IOS Broadband High Availability In Service Software Upgrade" section.

Step 1 and Step 2 are useful for troubleshooting the CCM synchronization component. Steps 3, 4 and 5 are useful for reviewing PPPoX session statistics. Step 6 through Step 8 are typically used by Cisco engineers for internal debugging purposes; you may be asked to provide command output to a technical assistance center (TAC) engineer for assistance in troubleshooting.

SUMMARY STEPS

1. show ccm clients

2. show ccm sessions

3. show ppp subscriber statistics

4. show pppatm statistics

5. show pppoe statistics

6. show ccm queues

7. debug pppatm redundancy

8. debug pppoe redundancy

DETAILED STEPS

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Step 1 show ccm clients

This command shows information on the CCM, the HA component that manages the capability to synchronize session bringup on the standby processor of a redundant processor, high availability (HA) system. Use the show ccm clients command to display information on CCM clients. The following is sample output fromthe show ccm clients command from a Cisco 10000 series router active RP:

Router# show ccm clients

CCM bundles sent since peer up:

	Sync Session                0

	Update Session              0

	Active Bulk Sync            0

	Session Down                0

	ISSU client msgs            0

	Unknown msgs                0

Client events sent since peer up:

	PPP                         0

	PPPoE                       0

	PPPoA                       0

	AAA                         0

	PPP SIP                     0

	LTERM                       0

	AC                          0

	Virtual Template            0

The following is sample output fromthe show ccm clients command from a Cisco 10000 series router standby RP:

Router# show ccm clients

CCM bundles rcvd since last boot:

    Sync Session                8

    Update Session              0

    Active Bulk Sync            1

    Session Down                8

    ISSU client msgs            59

    Unknown msgs                0

Client events extracted since last boot:

    PPP                         72

    PPPoE                       50

    PPPoA                       0

    AAA                         32

    PPP SIP                     0

    LTERM                       8

    AC                          0

Step 2 show ccm sessions

This command shows information on sessions managed by the CCM. The following is sample output fromthe show ccm sessions command on the active RP:

Router# show ccm sessions

Global CCM state:                                CCM HA Active - Dynamic Sync

Global ISSU state:                               Compatible, Clients Cap 0x0

> Number of sessions in state Down:                0

> Number of sessions in state Not Ready:           0

> Number of sessions in state Ready:               0

> Number of sessions in state Dyn Sync:            0

> 

> Timeout: Timer Type   Delay    Remaining Starts    CPU Limit CPU Last

>          ------------ -------- --------- --------- --------- --------

>          Rate         00:00:01 -         2         -         -       

>          Dynamic CPU  00:00:10 -         0         90        0 

The following is sample output from the show ccm sessions command on the standby RP:

Router# show ccm sessions

Global CCM state:                        CCM HA Standby - Collecting

Global ISSU state:                       Compatible, Clients Cap 0xFFE

                                         Current     Bulk Sent   Bulk Rcvd

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

Number of sessions in state Down:        0           0           0          

Number of sessions in state Not Ready:   0           0           0          

Number of sessions in state Ready:       0           0           0          

Number of sessions in state Dyn Sync:    0           0           0          

Timeout: Timer Type   Delay    Remaining Starts      CPU Limit CPU Last

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

         Rate         00:00:01 -         0           -         -       

         Dynamic CPU  00:00:10 -         0           90        0       

         Bulk Time Li 00:08:00 -         0           -         -       

         RF Notif Ext 00:00:20 -         0           -         -       

Step 3 show ppp subscriber statistics

This command is useful for obtaining events and statistics for PPP subscribers. Use the show ppp subscriber statistics command to display a cumulative count of PPP subscriber events and statistics, and to display an incremental count since the clear ppp subscriber statistics command was last issued.

The following is sample output from the show ppp subscriber statistics command:

Router# show ppp subscriber statistics

PPP Subscriber Events          TOTAL         SINCE CLEARED

Encap                          32011         32011        

DeEncap                        16002         16002        

CstateUp                       173           173          

CstateDown                     36            36           

FastStart                      0             0            

LocalTerm                      7             7            

LocalTermVP                    0             0            

MoreKeys                       173           173          

Forwarding                     0             0            

Forwarded                      0             0            

SSSDisc                        0             0            

SSMDisc                        0             0            

PPPDisc                        167           167          

PPPBindResp                    173           173          

PPPReneg                       3             3            

RestartTimeout                 169           169          

> 

PPP Subscriber Statistics      TOTAL         SINCE CLEARED

IDB CSTATE UP                  16008         16008        

IDB CSTATE DOWN                40            40           

APS UP                         0             0            

APS UP IGNORE                  0             0            

APS DOWN                       0             0            

READY FOR SYNC                 10            10           

Step 4 show pppatm statistics

This command is useful for obtaining statistics for PPPoA sessions. Use the show pppatm statistics command to display a total count of PPPoA events since the clear pppatm statistics command was last issued.

The following is sample output from theshow pppatm statistics command:

Router# show pppatm statistics

	4000 : Context Allocated events

	3999 : SSS Request events

	7998 : SSS Msg events

	3999 : PPP Msg events

	3998 : Up Pending events

	3998 : Up Dequeued events

	3998 : Processing Up events

	3999 : Vaccess Up events

	3999 : AAA unique id allocated events

	3999 : No AAA method list set events

	3999 : AAA gets nas port details events

	3999 : AAA gets retrived attrs events

	68202 : AAA gets dynamic attrs events

	3999 : Access IE allocated events

Step 5 show pppoe statistics

This command is useful for obtaining statistics and events for PPPoE sessions. Use the show pppoe statistics command to display a cumulative count of PPPoE events and statistics, and to display an incremental count since the last time the clear pppoe statistics command was issued.

The following is sample output from the show pppoe statistics command:

Router# show pppoe statistics

PPPoE Events                   TOTAL         SINCE CLEARED

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

INVALID                        0             0            

PRE-SERVICE FOUND              0             0            

PRE-SERVICE NONE               0             0            

SSS CONNECT LOCAL              16002         16002        

SSS FORWARDING                 0             0            

SSS FORWARDED                  0             0            

SSS MORE KEYS                  16002         16002        

SSS DISCONNECT                 0             0            

CONFIG UPDATE                  0             0            

STATIC BIND RESPONSE           16002         16002        

PPP FORWARDING                 0             0            

PPP FORWARDED                  0             0            

PPP DISCONNECT                 0             0            

PPP RENEGOTIATION              0             0            

SSM PROVISIONED                16002         16002        

SSM UPDATED                    16002         16002        

SSM DISCONNECT                 0             0            

> 

PPPoE Statistics               TOTAL         SINCE CLEARED

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

SSS Request                    16002         16002        

SSS Response Stale             0             0            

SSS Disconnect                 0             0            

PPPoE Handles Allocated        16002         16002        

PPPoE Handles Freed            0             0            

Dynamic Bind Request           16002         16002        

Static Bind Request            16002         16002 

Step 6 show ccm queues

Use the show ccm queues command to display queue statistics for CCM sessions on active and standby processors. This command is primarily used only by Cisco engineers for internal debugging of CCM processes.

The following is sample output from the show ccm queues command:

Router# show ccm queues

9 Event Queues

                 size   max      kicks     starts    false   suspends  ticks(ms)

 4 CCM              0     2         13         13        0          0        20

 Event Names

                          Events  Queued  MaxQueued  Suspends  usec/evt max/evt

 1  4 Sync Session              0        0        0        0         0         0

 2  4 Sync Client               0        0        0        0         0         0

 3  4 Update                    0        0        0        0         0         0

 4  4 Session Down              0        0        0        0         0         0

 5  4 Bulk Sync Begi            0        0        0        0         0         0

 6  4 Bulk Sync Cont            0        0        0        0         0         0

 7  4 Bulk Sync End             1        0        1        0        53        53

 8  4 Going Active              0        0        0        0         0         0

 9  4 Going Standby             1        0        1        0        10        10

10  4 Standby Presen            0        0        0        0         0         0

11  4 Standby Gone              0        0        0        0         0         0

13  4 CP Message               18        0        2        0       156       573

14  4 Recr Session              0        0        0        0         0         0

15  4 Recr Update               0        0        0        0         0         0

16  4 Recr Sess Down            0        0        0        0         0         0

17  4 ISSU Session N            1        0        1        0       283       283

18  4 ISSU Peer Comm            0        0        0        0         0         0

Step 7 debug pppatm redundancy

Use the debug pppatm redundancy command to display CCM events and messages for PPPoA sessions on HA systems. This command is generally used only by Cisco engineers for internal debugging of CCM processes. The following is sample output from the debug pppatm redundancy command from a Cisco 10000 series router standby RP:

Router# debug pppatm redundancy

*Dec  3 02:58:40.784: PPPATM HA: [14000001]: Received the first SHDB 

*Dec  3 02:58:40.784: PPPATM HA: [14000001]: Base hwidb not created > yet, queuing SHDB 
*Dec  3 02:58:40.784: PPPATM HA: [14000001]: 

Requesting base vaccess creation

Step 8 debug pppoe redundancy

Use the debug pppoe redundancy command to display CCM events and messages for PPPoE sessions on HA systems. This command is generally used only by Cisco engineers for internal debugging of CCM processes. The following is sample output from the debug pppoe redundancy command from a Cisco 10000 series router active RP:

Router# debug pppoe redundancy

Nov 22 17:21:11.327: PPPoE HA[0xBE000008] 9: Session ready to sync data 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = PADR, length = 58 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SESSION ID, length = 2 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SWITCH HDL, length = 4 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SEGMENT HDL, length = 4 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = PHY SWIDB DESC, length = 20 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = VACCESS DESC, length = 28 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: Sync collection for ready events 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = PADR, length = 58 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SESSION ID, length = 2 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SWITCH HDL, length = 4 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SEGMENT HDL, length = 4 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = PHY SWIDB DESC, length = 20 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = VACCESS DESC, length = 28

The following is sample output from the debug pppoe redundancy command from a Cisco 10000 series router standby RP:

Router# debug pppoe redundancy

Nov 22 17:21:11.448: PPPoE HA[0x82000008]: Recreating session: retrieving data 

Nov 22 17:21:11.464: PPPoE HA[0x82000008] 9: Session ready to sync data

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Configuration Examples for Cisco IOS Broadband High Availability In Service Software Upgrade

This section provides the following configuration examples:

•PPPoX Terminated into an RA-MPLS Network with ISSU: Example

PPPoX Terminated into an RA-MPLS Network with ISSU: Example

The following example shows how to configure PPPoX session subscriber redundancy policy for the Cisco IOS Broadband High Availability In Service Software Upgrade feature in a RA-MPLS network.

Router# show running-config

hostname Router

!

boot-start-marker

boot system bootflash:c10k2-p11-mz.sur3_1003 boot-end-marker !

enable password cisco

!

aaa new-model

!

!

aaa authentication ppp default local

!

!

!

aaa session-id common

ppp hold-queue 80000

facility-alarm intake-temperature major 54 facility-alarm intake-temperature minor 45 
facility-alarm intake-temperature critical 72 facility-alarm core-temperature major 58 
facility-alarm core-temperature minor 50 facility-alarm core-temperature critical 85 !

!

card 1/0 4oc3atm-1

card 2/0 4oc3atm-1

card 3/0 4oc3atm-1

card 4/0 4oc3atm-1

card 5/0 8fastethernet-1

card 6/0 4oc3atm-1

card 7/0 4oc3atm-1

card 8/0 1gigethernet-hh-1

card 8/1 1gigethernet-hh-1

ip subnet-zero

no ip gratuitous-arps

no ip domain lookup

ip vrf vrf1

  rd 1:1

  route-target export 1:1

  route-target import 1:1

!

no ip dhcp use vrf connected

!

!

!

!

no subscriber policy recording rules

The following lines show subscriber redundancy policy configuration:

subscriber redundancy dynamic limit cpu 90 delay 10 subscriber redundancy bulk limit cpu 
90 delay 10 subscriber redundancy rate 4000 1 subscriber redundancy delay 10 no mpls 
traffic-eng auto-bw timers frequency 0 mpls ldp graceful-restart mpls ldp router-id 
Loopback100 no virtual-template snmp issu config-sync policy bulk prc issu config-sync 
policy bulk bem !

redundancy

  mode sso

username cisco password 0 cisco

!

buffers small permanent 15000

buffers middle permanent 12000

buffers large permanent 1000

bba-group pppoe grp1

  virtual-template 1

!

bba-group pppoe grp2

  virtual-template 2

!

bba-group pppoe grp3

  virtual-template 3

!

bba-group pppoe grp4

  virtual-template 4

!

bba-group pppoe grp5

  virtual-template 5

!

bba-group pppoe grp7

  virtual-template 7

!

bba-group pppoe grp8

  virtual-template 8

!

bba-group pppoe grp6

  virtual-template 6

!

!

interface Loopback0

  ip vrf forwarding vrf1

  ip address 172.16.1.1 255.255.255.255

!

interface Loopback100

  ip address 172.31.0.1 255.255.255.255

!

interface FastEthernet0/0/0

  ip address 192.168.2.26 255.255.255.0

  speed 100

  full-duplex

!

interface ATM1/0/0

  no ip address

  load-interval 30

!

interface ATM1/0/0.1 multipoint

  range pvc 1/32 1/4031

   encapsulation aal5snap

   protocol pppoe group grp1

  !

!

interface ATM1/0/0.2 multipoint

  range pvc 2/32 2/4031

   encapsulation aal5snap

   protocol pppoe group grp2

  !

!

interface ATM1/0/1

  no ip address

!

interface ATM1/0/1.1 multipoint

  range pvc 3/32 3/4031

   encapsulation aal5snap

   protocol pppoe group grp3

  !

!

interface ATM1/0/1.2 multipoint

  range pvc 4/32 4/4031

   encapsulation aal5snap

   protocol pppoe group grp4

  !

!

interface ATM1/0/2

  no ip address

!

interface ATM1/0/2.1 multipoint

  range pvc 5/32 5/4031

   encapsulation aal5snap

   protocol pppoe group grp5

  !

!

interface ATM1/0/2.2 multipoint

  range pvc 6/32 6/4031

   encapsulation aal5snap

   protocol pppoe group grp6

  !

!

interface ATM1/0/3

  no ip address

!

interface ATM1/0/3.1 multipoint

  range pvc 7/32 7/4031

   encapsulation aal5snap

   protocol pppoe group grp7

  !

!

interface ATM1/0/3.2 multipoint

  range pvc 8/32 8/4031

   encapsulation aal5snap

   protocol pppoe group grp8

  !

!

!

!

interface ATM7/0/3

  no ip address

!

interface GigabitEthernet8/0/0

  mac-address 0011.0022.0033

  ip vrf forwarding vrf1

  ip address 20.1.1.2 255.255.255.0

  negotiation auto

!

interface GigabitEthernet8/1/0

  ip address 11.1.1.1 255.255.255.0

  negotiation auto

  mpls ip

!

interface Virtual-Template1

  ip vrf forwarding vrf1

  ip unnumbered Loopback0

  no logging event link-status

  peer default ip address pool pool1

  no snmp trap link-status

  keepalive 30

  ppp authentication pap

!

interface Virtual-Template2

  ip vrf forwarding vrf1

  ip unnumbered Loopback0

  no logging event link-status

  peer default ip address pool pool2

  no snmp trap link-status

  keepalive 30

  ppp authentication pap

!

interface Virtual-Template3

  ip vrf forwarding vrf1

  ip unnumbered Loopback0

  no logging event link-status

  peer default ip address pool pool3

  no snmp trap link-status

  keepalive 30

  ppp authentication pap

!

interface Virtual-Template4

  ip vrf forwarding vrf1

  ip unnumbered Loopback0

  no logging event link-status

  peer default ip address pool pool4

  no snmp trap link-status

  keepalive 30

  ppp authentication pap

!

interface Virtual-Template5

  ip vrf forwarding vrf1

  ip unnumbered Loopback0

  no logging event link-status

  peer default ip address pool pool5

  no snmp trap link-status

  keepalive 30

  ppp authentication pap

!

interface Virtual-Template6

  ip vrf forwarding vrf1

  ip unnumbered Loopback0

  no logging event link-status

  peer default ip address pool pool6

  no snmp trap link-status

  keepalive 30

  ppp authentication pap

!

interface Virtual-Template7

  ip vrf forwarding vrf1

  ip unnumbered Loopback0

  no logging event link-status

  peer default ip address pool pool7

  no snmp trap link-status

  keepalive 30

  ppp authentication pap

!

interface Virtual-Template8

  ip vrf forwarding vrf1

  ip unnumbered Loopback0

  no logging event link-status

  peer default ip address pool pool8

  no snmp trap link-status

  keepalive 30

  ppp authentication pap

!

router ospf 1

  log-adjacency-changes

  nsf

  network 11.1.1.0 0.0.0.255 area 0

  network 223.0.0.0 0.0.0.255 area 0

!

router bgp 1

  no synchronization

  bgp log-neighbor-changes

  bgp graceful-restart restart-time 120

  bgp graceful-restart stalepath-time 360

  bgp graceful-restart

  neighbor 223.0.0.3 remote-as 1

  neighbor 223.0.0.3 update-source Loopback100

  no auto-summary

  !

  address-family vpnv4

  neighbor 223.0.0.3 activate

  neighbor 223.0.0.3 send-community extended

  exit-address-family

  !

  address-family ipv4 vrf vrf1

  redistribute connected

  redistribute static

  no auto-summary

  no synchronization

  exit-address-family

!

ip local pool pool2 12.1.1.1 12.1.16.160 ip local pool pool3 13.1.1.1 13.1.16.160 ip local 
pool pool4 14.1.1.1 14.1.16.160 ip local pool pool5 15.1.1.1 15.1.16.160 ip local pool 
pool6 16.1.1.1 16.1.16.160 ip local pool pool7 17.1.1.1 17.1.16.160 ip local pool pool8 
18.1.1.1 18.1.16.160 ip classless !

!

no ip http server

!

!

arp 20.1.1.1 0020.0001.0001 ARPA

arp vrf vrf1 20.1.1.1 0020.0001.0001 ARPA !

!

!

!

!

line con 0

line aux 0

line vty 0 4

  password cisco

!

exception crashinfo file bootflash:crash.log !

end

Additional References

The following sections provide references related to the Cisco IOS Broadband High Availability In Service Software Upgrade feature.

Related Documents

Related Topic	Document Title
Information about Cisco 10000 series routers and broadband aggregation	Cisco 10000 Series Router Broadband Aggregation, Leased-Line, and MPLS Configuration Guide
Performing an ISSU	Cisco IOS In Service Software Upgrade Process
Information about the broadband SSO feature	Cisco IOS Broadband High Availability Stateful Switchover
Information about SSO	Stateful Switchover
Information about NSF	Cisco Nonstop Forwarding

Standards

Standard	Title
No new or modified standards are supported by this feature, and support for existing standards has not been modified by this feature.	—

MIBs

MIB	MIBs Link
No new or modified MIBs are supported by this feature, and support for existing MIBs has not been modified by this feature.	To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL: http://www.cisco.com/go/mibs

RFCs

RFC	Title
No new or modified RFCs are supported by this feature, and support for existing RFCs has not been modified by this feature.	—

Technical Assistance

Description	Link
The Cisco Technical Support & Documentation website contains thousands of pages of searchable technical content, including links to products, technologies, solutions, technical tips, tools, and technical documentation. Registered Cisco.com users can log in from this page to access even more content.	http://www.cisco.com/techsupport

Command Reference

This section documents new commands only.

•clear ppp subscriber statistics

•clear pppatm statistics

•clear pppoe statistics

•debug pppatm redundancy

•debug pppoe redundancy

•show ccm clients

•show ccm queues

•show ccm sessions

•show ppp subscriber statistics

•show pppatm statistics

•show pppoe statistics

•subscriber redundancy

clear ppp subscriber statistics

To clear PPP subscriber statistics and reset counters to zero, use the clear ppp subscriber statistics command in privileged EXEC mode.

clear ppp subscriber statistics

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

Use the clear ppp subscriber statistics command to clear all PPP subscriber statistics and reset counters to zero.

Examples

The following example clears all PPP subscriber statistics and resets counters to zero:

Router# clear ppp subscriber statistics

Related Commands

Command	Description
show ppp subscriber statistics	Displays PPP statistics.

clear pppatm statistics

To clear PPP over ATM statistics and reset counters to zero, use the clear pppatm statistics command in privileged EXEC mode.

clear pppatm statistics

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

Use the clear pppatm statistics command to clear PPPoA statistics and reset counters to zero.

Examples

The following example clears PPPoA statistics and reset counters to zero:

Router# clear pppatm subscriber statistics

Related Commands

Command	Description
show pppatm statistics	Displays PPPoA statistics.

clear pppoe statistics

To clear PPP over Ethernet (PPPoE) statistics and reset counters to zero, use the clear pppoe statistics command in privileged EXEC mode.

clear pppoe statistics

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

Use the clear pppoe statistics command to clear all PPPoE statistic and reset counters to zero.

Examples

The following example clears all PPPoE statistics and resets counters to zero:

Router# clear pppoe statistics

Related Commands

Command	Description
show pppoe statistics	Displays PPPoE statistics.

debug pppatm redundancy

To debug PPP over ATM (PPPoA) redundancy events on a high availablity (HA) dual route processor system and display Cluster Control Manager (CCM) events and messages, use the debug pppatm redundancy command in privileged EXEC mode. To disable the display of debugging output, use the no form of this command.

debug pppatm redundancy

no debug pppatm redundancy

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced on the Cisco 10000 series routers.

Usage Guidelines

The CCM provides the capability to facilitate and synchronize session bring up on the standby processor of a dual route processor HA system. Use the debug pppatm redundancy command to display CCM events and messages for PPPoA sessions on HA systems.

---

Note The debug pppatm redundancy command does not display output on the active processor during normal synchronization, that is, the command displays output on the active processor only during an error condition.

---

This command is used only by Cisco engineers for internal debugging of CCM processes.

Examples

The following is sample output for the debug pppatm redundancy command from a Cisco 10000 Series router standby processor. No field descriptions are provided because command output is used for Cisco internal debugging purposes only.

Router# debug pppatm redundancy

*Dec  3 02:58:40.784: PPPATM HA: [14000001]: Received the first SHDB 

*Dec  3 02:58:40.784: PPPATM HA: [14000001]: Base hwidb not created > yet, queuing SHDB 
*Dec  3 02:58:40.784: PPPATM HA: [14000001]: 

Requesting base vaccess creation

debug pppoe redundancy

To debug PPP over Ethernet (PPPoE) redundancy events on a high availablity (HA) dual route processor system and display Cluster Control Manager (CCM) events and messages, use the debug pppoe redundancy command in privileged EXEC mode. To disable the display of debugging output, use the no form of this command.

debug pppoe redundancy

no debug ppp redundancy

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

The CCM provides the capability to facilitate and synchronize session bring up on the standby processor of a dual route processor HA system.Use the debug pppoe redundancy command to display CCM events and messages for PPPoE sessions. This command is used only by Cisco engineers for internal debugging of CCM processes.

Examples

The following is sample output for the debug pppoe redundancy command from a Cisco 10000 Series router active processor. No field descriptions are provided because command output is used for Cisco internal debugging purposes only.

Router# debug pppoe redundancy

Nov 22 17:21:11.327: PPPoE HA[0xBE000008] 9: Session ready to sync data 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = PADR, length = 58 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SESSION ID, length = 2 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SWITCH HDL, length = 4 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SEGMENT HDL, length = 4 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = PHY SWIDB DESC, length = 20 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = VACCESS DESC, length = 28 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: Sync collection for ready events 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = PADR, length = 58 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SESSION ID, length = 2 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SWITCH HDL, length = 4 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = SEGMENT HDL, length = 4 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = PHY SWIDB DESC, length = 20 

Nov 22 17:21:11.351: PPPoE HA[0xBE000008] 9: code = VACCESS DESC, length = 28

The following is sample output for the debug pppoe redundancy command from a Cisco 10000 Series router standby processor:

Router# debug pppoe redundancy

Nov 22 17:21:11.448: PPPoE HA[0x82000008]: Recreating session: retrieving data 

Nov 22 17:21:11.464: PPPoE HA[0x82000008] 9: Session ready to sync data

show ccm clients

To display information about cluster control manager (CCM) clients on high availability (HA), dual route processor systems use the show ccm clients command in privileged EXEC mode.

show ccm clients

Command Default

No default behavior or values.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

The CCM manages the capability to synchronize session bringup on the standby processor of a dual route processor HA system. Use the show ccm clients command to display information about CCM clients.

Examples

The following is sample output from the show ccm clients command on a Cisco 10000 series router active processor:

Router# show ccm clients

CCM bundles sent since peer up:

	Sync Session                0

	Update Session              0

	Active Bulk Sync            0

	Session Down                0

	ISSU client msgs            0

	Unknown msgs                0

Client events sent since peer up:

	PPP                         0

	PPPoE                       0

	PPPoA                       0

	AAA                         0

	PPP SIP                     0

	LTERM                       0

	AC                          0

	Virtual Template            0

The following is sample output from the show ccm clients command on a Cisco 10000 series router standby processor:

Router# show ccm clients

CCM bundles rcvd since last boot:

    Sync Session                8

    Update Session              0

    Active Bulk Sync            1

    Session Down                8

    ISSU client msgs            59

    Unknown msgs                0

Client events extracted since last boot:

    PPP                         72

    PPPoE                       50

    PPPoA                       0

    AAA                         32

    PPP SIP                     0

    LTERM                       8

    AC                          0

Table 5 describes the significant fields shown in the display. Any data not described in Table 4 is used for Cisco internal debugging purposes.

Table 1 show ccm clients Field Descriptions 

Field	Description
CCM bundles sent since peer up	Number of the following types of CCM bundles sent by the active processor since bringup on the standby processor : •Sync Session—Synchronization session bundles. •Update Session—Update session bundles. •Active Bulk Sync—Active processor bulk synchronization bundles. •Session Down—Session down bundles. •ISSU client msgs—In service software upgrade (ISSU) bundles. •Unknown msgs—Unknown message bundles.
Client events sent since peer up	Number of the following types of client events sent since bringup on the standby processor: •PPP—Point to point protocol (PPP) client events. •PPPoE—PPP over Ethernet client events. •PPPoA—PPP over ATM client events. •AAA—Authentication, authorization, and accounting (AAA) client events. •PPP SIP—PPP subscriber initiation process (SIP) events. •LTERM—Local termination client events. •AC—Attachment circuit events. •Virtual Template—Virtual template events.
CCM bundles rcvd since last boot	Number of the following types of CCM bundles received by the standby processor since bringup: •Sync Session—Synchronization session bundles. •Update Session—Update session bundles. •Active Bulk Sync—Active processor bulk synchronization bundles. •Session Down—Session down bundles. •ISSU client msgs—InISSU bundles. •Unknown msgs—Unknown message bundles.
Client events extracted since last boot	Number of the following client events extracted since bringup on the standby processor: •PPP—PPP client events. •PPPoE—PPPoE client events. •PPPoA—PPPoAclient events. •AAA—AAA client events. •PPP SIP—PPP SIP events. •LTERM—Local termination client events. •AC—Attachment circuit events.

Related Commands

Command	Description
show ccm queues	Displays CCM queue statistics.
show ccm sessions	Displays CCM session information.

show ccm queues

To display cluster control manager (CCM) queue statistics for high availability (HA) dual route processor systems, use the show ccm queues command in privileged EXEC mode.

show ccm queues

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

The CCM manages the capability to synchronize session bringup on the standby processor of a redundant processor HA system. Use the show ccm queues command to display queue statistics for CCM sessions on active and standby processors. This command is generally used only by Cisco engineers for internal debugging of CCM processes.

Examples

The following is sample output from the show ccm queues command. No field descriptions are provided because command output is used for Cisco internal debugging purposes only.

Router# show ccm queues

9 Event Queues

                 size   max      kicks     starts    false   suspends  ticks(ms)

 4 CCM              0     2         13         13        0          0        20

 Event Names

                          Events  Queued  MaxQueued  Suspends  usec/evt max/evt

 1  4 Sync Session              0        0        0        0         0         0

 2  4 Sync Client               0        0        0        0         0         0

 3  4 Update                    0        0        0        0         0         0

 4  4 Session Down              0        0        0        0         0         0

 5  4 Bulk Sync Begi            0        0        0        0         0         0

 6  4 Bulk Sync Cont            0        0        0        0         0         0

 7  4 Bulk Sync End             1        0        1        0        53        53

 8  4 Going Active              0        0        0        0         0         0

 9  4 Going Standby             1        0        1        0        10        10

10  4 Standby Presen            0        0        0        0         0         0

11  4 Standby Gone              0        0        0        0         0         0

13  4 CP Message               18        0        2        0       156       573

14  4 Recr Session              0        0        0        0         0         0

15  4 Recr Update               0        0        0        0         0         0

16  4 Recr Sess Down            0        0        0        0         0         0

17  4 ISSU Session N            1        0        1        0       283       283

18  4 ISSU Peer Comm            0        0        0        0         0         0

Related Commands

Command	Description
show ccm clients	Displays CCM client information
show ccm sessions	Displays CCM session information

show ccm sessions

To display information about cluster control manager (CCM) sessions on high availability (HA) dual route processor systems, use the show ccm sessions command in privileged EXEC mode.

show ccm sessions

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

The CCM manages the capability to synchronize session bringup on the standby processor of a redundant processor HA system. Use the show ccm sessions command to display information on CCM sessions on active and standby processors, and also to display information on subscriber redundancy policies configured using the subscriber redundancy command.

Examples

The following is sample output from the show ccm sessions command on the active processor of a Cisco 10000 series router:

Router# show ccm sessions

Global CCM state:                                CCM HA Active - Dynamic Sync

Global ISSU state:                               Compatible, Clients Cap 0x0

	Number of sessions in state Down:                0

	Number of sessions in state Not Ready:           0

	Number of sessions in state Ready:               0

	Number of sessions in state Dyn Sync:            0

Timeout: Timer Type   Delay    Remaining Starts    CPU Limit CPU Last

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

		Rate         00:00:01 	-         2         -         -       

		Dynamic CPU  00:00:10 	-         0         90        0 

The following is sample output from the show ccm sessions command on the standby processor of a Cisco 10000 series router:

Router# show ccm sessions

Global CCM state:                        CCM HA Standby - Collecting

Global ISSU state:                       Compatible, Clients Cap 0xFFE

                                         Current     Bulk Sent   Bulk Rcvd

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

Number of sessions in state Down:        0           0           0          

Number of sessions in state Not Ready:   0           0           0          

Number of sessions in state Ready:       0           0           0          

Number of sessions in state Dyn Sync:    0           0           0          

Timeout: Timer Type   Delay    Remaining Starts      CPU Limit CPU Last

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

         Rate         00:00:01 -         0           -         -       

         Dynamic CPU  00:00:10 -         0           90        0       

         Bulk Time Li 00:08:00 -         0           -         -       

         RF Notif Ext 00:00:20 -         0           -         -       

Table 2 describes the significant fields shown in the display. Any data not described in Table 2 is used for Cisco internal debugging purposes.

Table 2 show ccm sessions Field Descriptions 

Field	Description
Global CCM state	Displays the number and state of CCM sessions on the following processors: •CCM HA Active- Dynamic Sync •CCM HA Standby - Collecting
Global ISSU state	Compatible clients indicates that CCM compatible in service software upgrade (ISSU) clients — that is, ISSU-compatible Cisco IOS versions — are running on both processors.
Current	CCM sessions currently ready for synchronization.
Bulk Sent	CCM sessions sent during bulk synchronization.
Bulk Rcvd	CCM sessions received during bulk synchronization.
Number of sessions in state Down	Sessions in the down state.
Number of sessions in state Not Ready	Sessions in the not ready state.
Number of sessions in state Ready	Sessions in the ready state.
Number of sessions in state Dyn Sync	Sessions in the dynamic synchronization state.
Timeout	Displays statistics for the following timers: •Rate—Monitors the number of sessions to be synchronized per configured time period. •Dynamic CPU—Monitors CPU limit, number of sessions, delay, and allowed calls configured for dynamic synchronization parameters. •Bulk Time Li—Monitors the time limit configured for bulk synchronization. •RF Notif Ext—Monitors redundancy facility(RF) active and standby state progressions and events. Use the subscriber redundancy command to modify parameters that these timers monitor.
Delay	Timer delay in seconds for bulk and dynamic synchronization for subscriber sessions.
Remaining	Indicates remaining time in seconds before the timer expires.
Starts	Indicates the number of times the timer started.
CPU Limit	CPU usage percentage, a configurable value; default 90 percent.
CPU Last	Indicates the last time in hours, minutes, and seconds that the CPU limit timer was running.

Related Commands

Command	Description
show ccm clients	Displays CCM client information.
show ccm queues	Displays CCM queue information.
subscriber redundancy	Configures subscriber session redundancy policies.

show ppp subscriber statistics

To display PPP subscriber statistics, use the show ppp subscriber statistics command in privileged EXEC mode.

show ppp subscriber statistics

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

This command is useful for obtaining events and statistics for PPP subscribers. Use the show ppp subscriber statistics command to display a cumulative count of PPP subscriber events and statistics, and to display an incremental count since the clear ppp subscriber statistics command was last issued.

Examples

The following is sample output from the show ppp subscriber statistics command:

Router# show ppp subscriber statistics

PPP Subscriber Events          TOTAL         SINCE CLEARED

Encap                          32011         32011        

DeEncap                        16002         16002        

CstateUp                       173           173          

CstateDown                     36            36           

FastStart                      0             0            

LocalTerm                      7             7            

LocalTermVP                    0             0            

MoreKeys                       173           173          

Forwarding                     0             0            

Forwarded                      0             0            

SSSDisc                        0             0            

SSMDisc                        0             0            

PPPDisc                        167           167          

PPPBindResp                    173           173          

PPPReneg                       3             3            

RestartTimeout                 169           169          

> 

PPP Subscriber Statistics      TOTAL         SINCE CLEARED

IDB CSTATE UP                  16008         16008        

IDB CSTATE DOWN                40            40           

APS UP                         0             0            

APS UP IGNORE                  0             0            

APS DOWN                       0             0            

READY FOR SYNC                 10            10           

Table 5 describes the significant fields shown in the displays. Any data not described in Table 5 is used for internal debugging purposes.

Table 3 show ppp subscriber statistics Field Descriptions 

Field	Description
PPP Subscriber Events	PPP subscriber event counts.
Encap	Number of times PPP encapsulation occurred.
DeEncap	Number of times PPP deencapsulation occurred.
CstateUp	Number of times PPP interfaces are initialized.
CstateDown	Number of times PPP interfaces were shut down.
FastStart	Number of PPP sessions started by link control protocol (LCP) packets before the interface state was up.
LocalTerm	Number of locally terminated PPP sessions.
LocalTermVP	Number of locally terminated PPP sessions running on virtual profiles.
MoreKeys	Number of PPP sessions in the intermediate state — that is, processing service keys — before a session is forwarded or terminated locally.
Forwarding	Number of PPP sessions in forwarding state.
Forwarded	Number of PPP sessions that have been forwarded.
SSSDisc	Number of PPP sessions disconnected from the subscriber service switch after receiving disconnect notification.
SSMDisc	Number of PPP sessions disconnected from the dataplane after receiving disconnect notification.
PPP BindResp	Number of PPP responses where the interface has been bound to the session.
PPP Reneg	Number of PPP renegotiation events.
Restart Timeout	Occurrences of the restart timer beginning on PPP encapsulated interfaces in the down state.
PPP Subscriber Statistics	PPP subscriber statistic counts.
IDB CSTATE UP	Occurrences of the IDB making the transition to the up state.
IDB CSTATE DOWN	Occurrences of the IDB making the transition to the down state.
APS UP	Occurrences of PPP sessions receiving automatic protection switching (APS) selected events.
APS UP IGNORE	Occurrences of PPP sessions receiving APS selected events when the IDB state was down.
APS DOWN	Occurrences of PPP sessions receiving APS deselected events.
READY FOR SYNC	Number of PPP sessions ready for synchronization.

Related Commands

Command	Description
clear ppp subscriber statistics	Clears PPP subscriber statistics.

show pppatm statistics

To display PPP over ATM (PPPoA) statistics, use the show pppatm statistics command in privileged EXEC mode.

show pppatm statistics

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

Use the show pppatm statistics command to obtain statistics for PPPoA sessions. This command gives a total count of PPPoA events since the clear pppatm statistics command was last issued.

Examples

The following example displays PPPoA statistics:

Router# show pppatm statistics

	4000 : Context Allocated events

	3999 : SSS Request events

	7998 : SSS Msg events

	3999 : PPP Msg events

	3998 : Up Pending events

	3998 : Up Dequeued events

	3998 : Processing Up events

	3999 : Vaccess Up events

	3999 : AAA unique id allocated events

	3999 : No AAA method list set events

	3999 : AAA gets nas port details events

	3999 : AAA gets retrived attrs events

	68202 : AAA gets dynamic attrs events

	3999 : Access IE allocated events

Table 4 describes the significant fields shown in the displays. Any data not described in Table 4 is used for internal debugging purposes.

Table 4 show pppatm statistics Field Descriptions

Field	Description
Context allocated events	Number of PPPoA events for which a context has been allocated.
SSS request events	Subscriber service switch (SSS) requests.
SSS Msg events	SSS responses
PPP Msg events	PPP responses.
Up Pending events	ATM VC notification of events in queue.
Up dequeued events	ATM VC notification of events removed from queue.
Processing Up events	PPPoA events processed.
Vaccess Up events	Number of events for which the virtual access interface state changed to up.
AAA unique id allocated events	Number of events for which a unique AAA ID was allocated.
No AAA method list set events	Number of events for which no AAA accounting list was configured.
AAA get NAS port details events	Number of NAS port events.
AAA gets retrieved attrs events	Number of AAA retrieved attributes events for incoming and outgoing packets.
AAA gets dynamic attrs events	Number of AAA dynamic attributes events for start/stop packets.
Access IE allocated events	Number of IE (internal ID ) allocated events.

Related Commands

Command	Description
clear pppatm statistics	Clears PPP ATM statistics.

show pppoe statistics

To display PPP over Ethernet (PPPoE) events and statistics, use the show pppoe statistics command in privileged EXEC mode.

show pppoe statistics

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

This command is useful for obtaining statistics and events for PPPoE sessions. Use the show pppoe statistics command to display a cumulative count of PPPoE events and statistics, and to display an incremental count since the last time the clear pppoe statistics command was issued.

Examples

The following is sample output from the show pppoe statistics command:

Router# show pppoe statistics

PPPoE Events                   TOTAL         SINCE CLEARED

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

INVALID                        0             0            

PRE-SERVICE FOUND              0             0            

PRE-SERVICE NONE               0             0            

SSS CONNECT LOCAL              16002         16002        

SSS FORWARDING                 0             0            

SSS FORWARDED                  0             0            

SSS MORE KEYS                  16002         16002        

SSS DISCONNECT                 0             0            

CONFIG UPDATE                  0             0            

STATIC BIND RESPONSE           16002         16002        

PPP FORWARDING                 0             0            

PPP FORWARDED                  0             0            

PPP DISCONNECT                 0             0            

PPP RENEGOTIATION              0             0            

SSM PROVISIONED                16002         16002        

SSM UPDATED                    16002         16002        

SSM DISCONNECT                 0             0            

> 

PPPoE Statistics               TOTAL         SINCE CLEARED

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

SSS Request                    16002         16002        

SSS Response Stale             0             0            

SSS Disconnect                 0             0            

PPPoE Handles Allocated        16002         16002        

PPPoE Handles Freed            0             0            

Dynamic Bind Request           16002         16002        

Static Bind Request            16002         16002        

Table 5 describes the significant fields shown in the displays. Any data not described in Table 5 is used for internal debugging purposes.

Table 5 show pppoe statistics Field Descriptions 

Field	Description
INVALID	Errors in the segment handling state machine; this field typically displays a zero.
PRE-SERVICE FOUND	Number of occurrences of PPPoE service policy having been located and configuration data having been read from the external server to the bba-group profile.
PRE-SERVICE NONE	Number of failures of PPPoE service policy profile configuration read from the external server .
SSS CONNECT LOCAL	Subscriber service switch (SSS) connections that received loca l termination directives.
SSS FORWARDING	SSS connections that received forwarding notification.
SSS FORWARDED	SSS connections that received forwarded notification.
SSS MORE KEYS	PPPoE sessions that are in the intermediate state, processing service keys, before a session is forwarded or terminated locally.
SSS DISCONNECT	PPPoE sessions disconnected after receiving a disconnect notification from the subscriber service switch.
CONFIG UPDATE	PPPoE sessions receiving serving policy configuration updates.
STATIC BIND RESPONSE	Number of responses that the interface is bound to the PPP session.
PPP FORWARDING	Number of PPPoE sessions in the forwarding state.
PPP FORWARDED	Number of forwarded PPPoE sessions.
PPP DISCONNECT	PPPoE sessions disconnected after receiving a disconnect message from the state machine.
PPP RENEGOTIATION	PPPoE sessions renegotiated after receiving a renegotiation message from the state machine.
SSM PROVISIONED	Segment switching manager (SSM) response that the dataplane has been initialized.
SSM UPDATED	SSM response that the dataplane has been successfully updated.
SSM DISCONNECT	Dataplane disconnects from PPPoE sessions.
SSS Request	SSS requests to determine if a call is to be forwarded or locally terminated.
SSS Response Stale	SSS responses received for sessions that are already freed.
SSS Disconnect	SSS disconnect messages to PPPoE sessions.
PPPoE Handles Allocated	Handles assigned for PPPoE sessions.
PPPoE Handles Freed	Handles freed for PPPoE sessions.
Dynamic Bind Request	PPPoE requests to start PPP sessions.
Static Bind Request	PPPoE requests to bind interfaces to PPP sessions

SSS

Related Commands

Command	Description
clear pppoe statistics	Clears PPPoE statistics.

subscriber redundancy

To configure broadband subscriber session redundancy policy for synchronization between high availability (HA) active and standby processors, use the subscriber redundancy command in global configuration mode. To delete the policy, use the no form of this command.

subscriber redundancy [bulk limit cpu percentage delay seconds allow value] [dynamic limit cpu percentage delay seconds allow value] [delay time] [rate sessions time]

no subscriber redundancy

Syntax Description

bulk	(Optional) Configures bulk synchronization redundancy policy.
dynamic	(Optional) Configures dynamic synchronization redundancy policy.
limit cpu percent	(Optional) Specifies CPU busy threshold value as a percentage. Range 0 to 100, default 90.
delay seconds	(Optional) Specifies delay in seconds before the CCM component synchronizes sessions after the CPU busy threshold is exceeded.
allow value	(Optional) Specifies the minimum number of sessions to synchronize once the CPU busy threshold is exceeded and the specified delay is met. Range is 1 to 2,147,483,637, default is 25.
delay time	(Optional) Specifies minimum amount of time in seconds that a session must be ready before dynamic synchronization occurs. Range is 1 to 33,550.
rate sessions time	(Optional) Specifies number of sessions per time period for bulk and dynamic synchronization . •sessions—Range 1 to 32,000, default is 250. •time—Range in seconds is 1 to 33,550, default is 1.

Command Default

Subscriber redundancy policy applies default values.

Command Modes

Global configuration

Command History

Release	Modification
12.2(31)SB2	This command was introduced.

Usage Guidelines

Cisco IOS HA functionality for broadband protocols and applications allows for stateful switchover (SSO) and in service software upgrade (ISSU) features that minimize planned and unplanned downtime and failures. HA uses the cluster control manager (CCM) to manage the capability to synchronize subscriber session bring up on the standby processor of a redundant processor system. Use the subscriber redundancy bulk command to create and modify redundancy policy used during bulk (startup) synchronization. Use the subscriber redundancy dynamic command to tune subscriber redundancy policies that throttle dynamic synchronization by monitoring CPU usage and sync rates. Use the subscriber redundancy delay command to establish session duration minimums for synchronization and manage dynamic syncing of short duration calls. Use the subscriber redundancy rate command to throttle the number of sessions to be synchronized per period.

Examples

The following example configures a 10 second delay when CPU usage exceeds 90 percent during bulk synchronization, after which 25 sessions will be synced before the CCM again checks CPU usage:

Router(config)# subscriber redundancy bulk limit cpu 90 delay 10 allow 25

The following example configures a minimum session duration of 15 seconds before dynamic synchronization to the standby processor:

Router(config)# subscriber redundancy dynamic 15

The following example configures 2000 sessions to be synchronized per second during bulk and dynamic synchronization:

Router(config)# subscriber redundancy rate 2000 1

Related Commands

Command	Description
show ccm sessions	Displays CCM session information
show ppp subscriber statistics	Displays PPP subscriber statistics
show pppatm statistics	Displays PPPoA statistics
show pppoe statistics	Displays PPPoE statistics

Feature Information for Cisco IOS Broadband High Availability In Service Software Upgrade

Table 6 lists the release history for this feature.

Not all commands may be available in your Cisco IOS software release. For release information about a specific command, see the command reference documentation.

Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS and Catalyst OS software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

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Note Table 6 lists only the Cisco IOS software release that introduced support for a given feature in a given Cisco IOS software release train. Unless noted otherwise, subsequent releases of that Cisco IOS software release train also support that feature.

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Table 6 Feature Information for Cisco IOS Broadband High Availability In Service Software Upgrade

Feature Name	Releases	Feature Information
Cisco IOS Broadband High Availability In Service Software Upgrade	12.2(31)SB2	The Cisco IOS Broadband High Availability (HA) In Service Software Upgrade (ISSU) feature provides the capability for the dual Route Processor (RP) Cisco 10000 series platforms to support continuous operations during software upgrades, downgrades and service enhancements.

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and coincidental.

© 2006 Cisco Systems, Inc. All rights reserved.