- Read Me First
- Preparing for Broadband Access Aggregation
- Providing Protocol Support for Broadband Access Aggregation of PPPoE Sessions
- PPP for IPv6
- DHCP for IPv6 Broadband
- Providing Protocol Support for Broadband Access Aggregation of PPP over ATM Sessions
- Providing Connectivity Using ATM Routed Bridge Encapsulation over PVCs
- PPPoE Circuit-Id Tag Processing
- Configuring PPP over Ethernet Session Limit Support
- PPPoE Session Limit Local Override
- PPPoE QinQ Support
- PPP-Max-Payload and IWF PPPoE Tag Support
- PPPoE Session Limiting on Inner QinQ VLAN
- PPPoE Agent Remote-ID and DSL Line Characteristics Enhancement
- Enabling PPPoE Relay Discovery and Service Selection Functionality
- Configuring Cisco Subscriber Service Switch Policies
- AAA Improvements for Broadband IPv6
- Per Session Queueing and Shaping for PPPoEoVLAN Using RADIUS
- 802.1P CoS Bit Set for PPP and PPPoE Control Frames
- PPP over Ethernet Client
- PPPoE Smart Server Selection
- Monitoring PPPoE Sessions with SNMP
- PPPoE on ATM
- PPPoE on Ethernet
- PPPoE over VLAN Enhancements Configuration Limit Removal and ATM Support
- ADSL Support in IPv6
- Broadband IPv6 Counter Support at LNS
- PPP IP Unique Address and Prefix Detection
- PPP IPv4 Address Conservation in Dual Stack Environments
- TR-069 Agent
- Broadband High Availability Stateful Switchover
- Broadband High Availability In-Service Software Upgrade
- Controlling Subscriber Bandwidth
- PPPoE Service Selection
- Disabling AC-name and AC-cookie Tags from PPPoE PADS
- Finding Feature Information
- Prerequisites for Broadband High Availability In-Service Software Upgrade
- Restrictions for Broadband High Availability In-Service Software Upgrade
- Information About Broadband High Availability In-Service Software Upgrade
- How to Configure Broadband High Availability In-Service Software Upgrade
- Configuration Examples for Broadband High Availability In-Service Software Upgrade
- Additional References
- Feature Information for Broadband High Availability In-Service Software Upgrade
Broadband High Availability In-Service Software Upgrade
The Broadband High Availability (HA) In-Service Software Upgrade (ISSU) feature ensures continuous operations of broadband access protocols during software upgrades, downgrades, and service enhancements.
- Finding Feature Information
- Prerequisites for Broadband High Availability In-Service Software Upgrade
- Restrictions for Broadband High Availability In-Service Software Upgrade
- Information About Broadband High Availability In-Service Software Upgrade
- How to Configure Broadband High Availability In-Service Software Upgrade
- Configuration Examples for Broadband High Availability In-Service Software Upgrade
- Additional References
- Feature Information for Broadband High Availability In-Service Software Upgrade
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Prerequisites for Broadband High Availability In-Service Software Upgrade
The ISSU and nonstop forwarding (NSF) features must be enabled. For more information about In-Service Software Upgrade, see the "Performing an In Service Software Upgrade" module. For more information about NSF, see the "Configuring Nonstop Forwarding" module.
Restrictions for Broadband High Availability In-Service Software Upgrade
You can perform an ISSU across a major Cisco IOS XE release.
You can perform an ISSU from a Cisco IOS XE release that supports ISSU capability.
Information About Broadband High Availability In-Service Software Upgrade
- Feature Design of Broadband High Availability In-Service Software Upgrade
- Supported Broadband Aggregation Protocols
- Benefits of Broadband High Availability In-Service Software Upgrade
Feature Design of Broadband High Availability In-Service Software Upgrade
Prior to the implementation of the Broadband High Availability In-Service Software Upgrade feature, software upgrades typically required planned outages that took the router or network out of service. The Broadband High Availability In-Service Software Upgrade feature enables the service provider to maximize network availability and eliminate planned outages by allowing the Cisco IOS XE release to be upgraded without taking the router or network out of service. ISSU is a procedure, based on Cisco high availability (HA) architecture, whereby the Cisco IOS XE infrastructure accomplishes an upgrade while packet forwarding continues and broadband sessions are maintained. Cisco 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 recreation and synchronization on the standby processor. The Broadband High Availability In-Service Software Upgrade feature allows the configuration of subscriber redundancy policies that tune the synchronization process. For more information see the Configuring Subscriber Redundancy Policy for Broadband High Availability In-Service Software Upgrade.
The 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 XE Release 2.2 to Cisco IOS XE Release 2.3.
Upgrades from one software maintenance release to another, for example from Cisco IOS XE Release 2.2.1 to Cisco IOS XE Release 2.2.2.
The Broadband High Availability In-Service Software Upgrade feature works with other Cisco IOS XE HA features, NSF and SSO, to maintain broadband sessions.
Performing an ISSU
For detailed information about HA and about performing an ISSU, see the following chapters in the Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide :
"High Availability Overview"
"Cisco IOS XE Software Package Compatibility for ISSU"
"In Service Software Upgrade (ISSU)"
Supported Broadband Aggregation Protocols
The Broadband High Availability In-Service Software Upgrade feature supports the following broadband aggregation protocols described in the following sections:
ISSU PPPoA
The Broadband High Availability In-Service Software Upgrade feature delivers ISSU capability for PPP over ATM (PPPoA) sessions during supported software upgrades, downgrades, and enhancements.
ISSU L2TP
The L2TP HA Session SSO/ISSU on a LAC/LNS feature provides a generic SSO/ISSU mechanism for Layer 2 Tunneling Protocol (L2TP) on a Layer 2 Access Concentrator (LAC) and a Layer 2 Network Server (LNS). This feature preserves all fully established PPP and L2TP sessions during an SSO switchover or an ISSU upgrade or downgrade.
ISSU PPPoE
The Broadband High Availability In-Service Software Upgrade feature delivers ISSU capability for PPP over Ethernet (PPPoE) subscriber access sessions, including PPPoE, PPPoE over VLAN, and PPPoE over QinQ sessions, during supported software upgrades, downgrades, and enhancements.
ISSU RA-MLPS VPN
The 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) VPN or PPPoX into MPLS VPN during supported software upgrades, downgrades, and enhancements.
The figure below shows a typical broadband aggregation HA deployment with ISSU functionality.
Benefits of Broadband High Availability In-Service Software Upgrade
Eliminates network downtime for Cisco IOS XE software 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 Broadband High Availability In-Service Software Upgrade
- Configuring Subscriber Redundancy Policy for Broadband High Availability In-Service Software Upgrade
- Verifying and Troubleshooting Subscriber Redundancy Policy for Broadband HA ISSU
Configuring Subscriber Redundancy Policy for Broadband High Availability In-Service Software Upgrade
The 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.
1.
enable
2.
configure
terminal
3.
subscriber
redundancy
{bulk limit{cpu percentage delay delay-time [allow value] | time seconds | delay delay-time | dynamic limit cpu percentage delay delay-time [allow value] | rate sessions time}
4.
exit
DETAILED STEPS
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 available in the Configuration Examples for Broadband High Availability In-Service Software Upgrade.
Step 1, Step 2 and Step 3 are useful for troubleshooting the CCM synchronization component.
Step 4, Step 5 and Step 6 are useful for reviewing PPPoX session statistics.
Step 7 and Step 8 are useful for verifying the failure of any L2TP tunnels or VPDN groups.
Step 9 and Step 10 are typically used by Cisco engineers for internal debugging purposes.
1.
show
ccm
clients
2.
show
ccm
sessions
3.
show
ccm
queues
4.
show
ppp
subscriber
statistics
5.
show
pppatm
statistics
6.
show
pppoe
statistics
7.
show
vpdn
redundancy
8.
show
vpdn
history
failure
9.
debug
pppatm
redundancy
10.
debug
pppoe
redundancy
DETAILED STEPS
| Step 1 |
show
ccm
clients
This command displays information about the CCM, the HA component that manages the capability to synchronize session launch on the standby processor of a redundant processor HA system. Use the show ccm clients command to display information about CCM clients. Example:
Router# show ccm clients
CCM bundles sent since peer up:
Sent Queued for flow control
Sync Session 0 0
Update Session 0 0
Active Bulk Sync End 1 0
Session Down 0 0
ISSU client msgs 350 0
Dynamic Session Sync 0 0
Unknown msgs 0 0
Client events sent since peer up:
PPP 0
PPPoE 0
VPDN FSP 0
AAA 0
PPP SIP 0
LTERM 0
AC 0
L2TP CC 0
SSS FM 0
IP SIP 0
IP IF 0
COA 0
Auto Svc 0
VPDN LNS 0
|
| Step 2 |
show
ccm
sessions
This command displays information about sessions managed by CCM. Example:
Router# show ccm sessions
Global CCM state: CCM HA Active - Dynamic Sync
Global ISSU state: Compatible, Clients Cap 0x9EFFE
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 CPU Lim 00:00:10 - 0 90 0
Bulk Time Li 00:00:01 - 0 - -
RF Notif Ext 00:00:01 - 8 - -
|
| Step 3 |
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. Example:
Router# show ccm queues
11 Event Queues
size max kicks starts false suspends ticks(ms)
3 CCM 0 8 82 83 1 0 20
Event Names
Events Queued MaxQueued Suspends usec/evt max/evt
1 3 Sync Session 0 0 0 0 0 0
2 3 Sync Client 0 0 0 0 0 0
3 3 Update 0 0 0 0 0 0
4 3 Session Down 0 0 0 0 0 0
5 3 Bulk Sync Begi 1 0 1 0 0 0
6 3 Bulk Sync Cont 2 0 2 0 0 0
7 3 Bulk Sync End 1 0 1 0 0 0
8 3 Rcv Bulk End 0 0 0 0 0 0
9 3 Dynamic Sync C 0 0 0 0 0 0
10 3 Going Active 0 0 0 0 0 0
11 3 Going Standby 0 0 0 0 0 0
12 3 Standby Presen 1 0 1 0 0 0
13 3 Standby Gone 0 0 0 0 0 0
15 3 CP Message 205 0 8 0 141 1000
16 3 Recr Session 0 0 0 0 0 0
17 3 Recr Update 0 0 0 0 0 0
18 3 Recr Sess Down 0 0 0 0 0 0
19 3 ISSU Session N 1 0 1 0 0 0
20 3 ISSU Peer Comm 0 0 0 0 0 0
21 3 Free Session 0 0 0 0 0 0
22 3 Sync Dyn Sessi 0 0 0 0 0 0
23 3 Recr Dyn Sessi 0 0 0 0 0 0
24 3 Session Ready 0 0 0 0 0 0
25 3 Pending Update 0 0 0 0 0 0
FSM Event Names Events
0 Invalid 0
1 All Ready 0
2 Required Not Re 0
3 Update 0
4 Down 0
5 Error 0
6 Ready 0
7 Not Syncable 0
8 Recreate Down 0
|
| Step 4 |
show
ppp
subscriber
statistics
This command is useful for displaying 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. Example: Router# show ppp subscriber statistics PPP Subscriber Events TOTAL SINCE CLEARED Encap 5 5 DeEncap 0 0 CstateUp 7 7 CstateDown 4 4 FastStart 0 0 LocalTerm 7 7 LocalTermVP 0 0 MoreKeys 7 7 Forwarding 0 0 Forwarded 0 0 SSSDisc 0 0 SSMDisc 0 0 PPPDisc 0 0 PPPBindResp 7 7 PPPReneg 3 3 RestartTimeout 5 5 PPP Subscriber Statistics TOTAL SINCE CLEARED IDB CSTATE UP 4 4 IDB CSTATE DOWN 8 8 APS UP 0 0 APS UP IGNORE 0 0 APS DOWN 0 0 READY FOR SYNC 8 8 |
| Step 5 |
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 statisticscommand was last issued. Example: 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 6 |
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. Example:
Router# show pppoe statistics
PPP Subscriber Events TOTAL SINCE CLEARED
Encap 5 5
DeEncap 2 2
CstateUp 0 0
CstateDown 0 0
FastStart 0 0
LocalTerm 0 0
LocalTermVP 0 0
MoreKeys 0 0
Forwarding 0 0
Forwarded 0 0
SSSDisc 0 0
SSMDisc 0 0
PPPDisc 0 0
PPPBindResp 0 0
PPPReneg 0 0
RestartTimeout 2 2
PPP Subscriber Statistics TOTAL SINCE CLEARED
IDB CSTATE UP 0 0
IDB CSTATE DOWN 0 0
APS UP 0 0
APS UP IGNORE 0 0
APS DOWN 0 0
READY FOR SYNC 0 0
ASR1006-1#sh pppoe statis
ASR1006-1#sh pppoe statistics ?
| Output modifiers
<cr>
ASR1006-1#sh pppoe statistics
PPPoE Events TOTAL SINCE CLEARED
------------------------------ ------------- -------------
INVALID 0 0
PRE-SERVICE FOUND 0 0
PRE-SERVICE NONE 0 0
SSS CONNECT LOCAL 0 0
SSS FORWARDING 0 0
SSS FORWARDED 0 0
SSS MORE KEYS 0 0
SSS DISCONNECT 0 0
SSS DISCONNECT ACK 0 0
CONFIG UPDATE 0 0
STATIC BIND RESPONSE 0 0
PPP FORWARDING 0 0
PPP FORWARDED 0 0
PPP DISCONNECT 0 0
PPP RENEGOTIATION 0 0
SSM PROVISIONED 0 0
SSM UPDATED 0 0
SSM ACCT STATS UPDATED 0 0
SSM DISCONNECT 0 0
0 0
PPPoE Statistics TOTAL SINCE CLEARED
------------------------------ ------------- -------------
SSS Request 0 0
SSS Response Stale 0 0
SSS Disconnect 0 0
PPPoE Handles Allocated 0 0
PPPoE Handles Freed 0 0
Dynamic Bind Request 0 0
Static Bind Request 0 0
SSM Async Stats Request 0 0
|
| Step 7 |
show
vpdn
redundancy
Use this command to verify the failure of any L2TP tunnels. Example: Router# show vpdn redundancy L2TP HA support: Silent Failover L2TP HA Status: Checkpoint Messaging on: TRUE Standby RP is up: TRUE Recv'd Message Count: 0 L2TP Tunnels: 0/0/0/0 (total/HA-enabled/HA-est/resync) L2TP Sessions: 0/0/0 (total/HA-enabled/HA-est) L2TP Resynced Tunnels: 0/0 (success/fail) |
| Step 8 |
show
vpdn
history
failure
Use this command to verify the failure of any VPDN groups. Example: Router# show vpdn history failure % VPDN user failure table is empty |
| Step 9 |
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. Example: 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 10 |
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. Example: 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 |
Configuration Examples for Broadband High Availability In-Service Software Upgrade
Example Subscriber Redundancy Policy for Broadband High Availability In-Service Software Upgrade
The following example shows how to configure the Broadband High Availability In-Service Software Upgrade feature:
enable configure terminal subscriber redundancy bulk limit cpu 75 delay 20 allow 30 end
The following is a sample configuration of PPPoX terminated into an RA-MPLS network with SSO. Commands that appear in the configuration task tables for this feature but that do not appear in the running configuration output are configured for their default settings.
hostname Router ! boot-start-marker boot system bootflash:packages.conf ! enable password cisco ! aaa new-model ! ! aaa authentication ppp default local ! ! ! aaa session-id common ppp hold-queue 80000 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 mpls ldp graceful-restart mpls ldp router-id Loopback100 no virtual-template snmp no issu config-sync policy bulk prc no 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 GigabitEthernet1/0/0 no ip address load-interval 30 ! interface GigabitEthernet1/0/0.1 encapsulation dot1Q 2 pppoe enable group grp1 ! ! interface GigabitEthernet1/0/0.2 encapsulation dot1Q 2 pppoe enable group grp2 ! ! interface GigabitEthernet1/0/1 no ip address ! interface GigabitEthernet1/0/1.1 encapsulation dot1Q 2 pppoe enable group grp3 ! ! interface GigabitEthernet1/0/1.2 encapsulation dot1Q 2 pppoe enable group grp4 ! ! interface GigabitEthernet1/0/2 no ip address ! interface GigabitEthernet1/0/2.1 encapsulation dot1Q 2 pppoe enable group grp5 ! ! interface GigabitEthernet1/0/2.2 encapsulation dot1Q 2 pppoe enable group grp6 ! ! interface GigabitEthernet1/0/3 no ip address ! interface GigabitEthernet1/0/3.1 encapsulation dot1Q 2 pppoe enable group grp7 ! ! interface GigabitEthernet1/0/3.2 encapsulation dot1Q 2 pppoe enable group grp8 ! interface GigabitEthernet7/0/3 no ip address ! interface GigabitEthernet8/0/0 mac-address 0011.0022.0033 ip vrf forwarding vrf1 ip address 10.1.1.2 255.255.255.0 negotiation auto ! interface GigabitEthernet8/1/0 ip address 10.1.1.1 255.255.255.0 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 10.1.1.0 0.0.0.255 area 0 network 10.0.0.0 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 10.0.0.3 remote-as 1 neighbor 10.0.0.3 update-source Loopback100 no auto-summary ! address-family vpnv4 neighbor 10.0.0.3 activate neighbor 10.0.0.3 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 10.1.1.1 10.1.16.160 ip local pool pool3 10.1.1.1 10.1.16.160 ip local pool pool4 10.1.1.1 10.1.16.160 ip local pool pool5 10.1.1.1 10.1.16.160 ip local pool pool6 10.1.1.1 10.1.16.160 ip local pool pool7 10.1.1.1 10.1.16.160 ip local pool pool8 10.1.1.1 10.1.16.160 ip classless ! ! no ip http server ! ! arp 10.1.1.1 0020.0001.0001 ARPA arp vrf vrf1 10.1.1.1 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
Related Documents
|
Related Topic |
Document Title |
|---|---|
|
Cisco IOS commands |
|
|
Cisco IOS Broadband commands |
Cisco IOS Broadband Access Aggregation and DSL Command Reference |
|
High Availability |
"High Availability Overview" chapter in the Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide |
|
Performing an ISSU |
The following chapters in the Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide : |
|
Broadband SSO |
Broadband High Availability Stateful Switchover |
|
Stateful switchover |
Stateful Switchover |
|
Cisco nonstop forwarding |
Cisco Nonstop Forwarding |
|
Layer 2 Tunnel Protocol |
Layer 2 Tunnel Protocol Technology Brief |
|
Additional information about commands used in this document |
Standards
|
Standard |
Title |
|---|---|
|
No new or modified standards are supported by this feature, and support for existing RFCs 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 software releases, and feature sets, use Cisco MIB Locator found at the following URL: |
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 Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies. Access to most tools on the Cisco Support and Documentation website requires a Cisco.com user ID and password. |
Feature Information for Broadband High Availability In-Service Software Upgrade
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.|
Feature Name |
Releases |
Feature Information |
|---|---|---|
|
ISSU-PPPoA |
Cisco IOS XE Release 3.3S |
This feature was introduced on Cisco ASR 1000 Series Routers. This feature uses the ISSU support for PPPoA to ensure continuous operations of broadband access protocols during software upgrades. The following commands were introduced or modified: debug pppatm redundancy , debug pppoe redundancy, show pppoe redundancy, show pppatm redundancy, show pppatm statistics, subscriber redundancy |
|
ISSU--PPPoE |
Cisco IOS XE Release 2.1 Cisco IOS XE Release 2.5 |
This feature was introduced on Cisco ASR 1000 Series Routers. This feature uses the ISSU--PPPoE support to ensure continuous operations of broadband access protocols during software upgrades, downgrades, and service enhancements. The following commands were introduced or modified: clear ppp subscriber statistics, clear pppoe statistics, debug pppoe redundancy, show ccm clients, show ccm sessions, show ppp subscriber statistics, show pppoe statistic, subscriber redundancy |
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