- Read Me First
- MPLS LDP Graceful Restart
- NSF SSO--MPLS LDP and LDP Graceful Restart
- ISSU MPLS Clients
- MPLS Traffic Engineering--RSVP Graceful Restart
- NSF SSO--MPLS TE and RSVP Graceful Restart
- AToM Graceful Restart
- NSF SSO--Any Transport over MPLS and AToM Graceful Restart
- Configuring NSF SSO--MPLS VPN
- SSO and ISSU--MPLS VPN 6VPE and 6PE Support
- SSO Support for MPLS TE Autotunnel and Automesh
- MPLS Traffic Engineering Nonstop Routing Support
Contents
- ISSU MPLS Clients
- Finding Feature Information
- Prerequisites for ISSU MPLS Clients
- Information About ISSU MPLS Clients
- ISSU-Capable Protocols and Applications Clients
- ISSU-Capable MPLS Feature Sets
- How to Verify that an MPLS Client Can Support an In Service Software Upgrade
- Verifying the ISSU Process for an MPLS Client
- Configuration Examples for ISSU MPLS Clients
- Verifying the ISSU Process for an MPLS LDP Client Example
- Verifying the ISSU Process for an MPLS VPN Client Example
- Verifying the ISSU Process for an MPLS VRF (“Table ID”) Client Example
- Verifying the ISSU Process for an MPLS LSD Label Manager HA Client Example
- Verifying the ISSU Process for an MPLS MFI Pull Client Example
- Verifying the ISSU Process for an MPLS MFI Push Client Example
- Verifying the ISSU Process for an MPLS LSPV Push Client Example
- Verifying the ISSU Process for an MPLS TE Client Example
- Additional References
- Feature Information for ISSU MPLS Clients
- Glossary
ISSU MPLS Clients
MPLS applications can be upgraded using the In Service Software Upgrade (ISSU) process. Thus, MPLS applications are considered ISSU’s MPLS clients. The ISSU process allows Cisco IOS XE software to be updated or otherwise modified while packet forwarding continues.
- Finding Feature Information
- Prerequisites for ISSU MPLS Clients
- Information About ISSU MPLS Clients
- How to Verify that an MPLS Client Can Support an In Service Software Upgrade
- Configuration Examples for ISSU MPLS Clients
- Additional References
- Feature Information for ISSU MPLS Clients
- Glossary
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 at the end of this module.
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 ISSU MPLS Clients
Before you perform an upgrade, you need to verify that the clients you are concerned about are compatible with the intended switchover. Use the commands listed in the Verifying the ISSU Process for an MPLS Client to determine compatibility.
The success performance of some clients in the upgraded network will depend upon their compatibility with other clients as described in the table below.
Information About ISSU MPLS Clients
Before examining ISSU coordination of MPLS clients, you should understand the following concepts:
This section provides information about upgrading MPLS-related applications through ISSU. Those MPLS applications are considered ISSU’s MPLS “clients.”
For more information on the ISSU procedure, see Cisco IOS XE In Service Software Upgrade Process document and see the Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide .
ISSU-Capable Protocols and Applications Clients
Protocols and applications that can be upgraded through the ISSU process are considered clients of ISSU. These include at least the following:
Address Resolution Protocol (ARP)
Asynchronous Transfer Mode (ATM)
Cisco Express Forwarding
Dynamic Host Configuration Protocol (DHCP)
EtherChannel--port aggregration protocol (PagP) and Link Aggregration Control Protocol (LACP)
Frame Relay (FR)
Gateway Load Balancing Protocol (GLBP)
High-Level Data Link Control (HDLC)
Hot Standby Router Protocol (HSRP)
IEEE 802.1x and 802.3af
Internet Group Management Protocol (IGMP) snooping
IP host
Intermediate System-to-Intermediate System (IS-IS)
Multiprotocol Label Switching (MPLS)
PPP and Multilink PPP
Port security
Quality of service (QoS)
Remote File System (RFS) versioning
Simple Network Management Protocol (SNMP)
Spanning Tree Protocol (STP)
 Note | For a complete list of ISSU- compliant protocols and applications that are supported for the Cisco ASR Series Routers for your release, see the Release Notes for Cisco ASR Series Aggregation Services Routers . |
ISSU-Capable MPLS Feature Sets
Within the MPLS technology, ISSU supports the following feature sets as clients:
Label Distribution Protocol (LDP)
MPLS Virtual Private Network (MPLS VPN)
VPN routing and forwarding (VRF), also called the “Table ID” client
Label Switching Database Label Manager for high availability, usually called “LSD Label Manager for HA”
MPLS Forwarding Infrastructure Pull, called “MFI Pull”
MPLS Forwarding Infrastructure Push, called “MFI Push”
Label Switched Path Verification Push within Operation, Administration, and Management (OAM), called “LSPV Push”
TE
How to Verify that an MPLS Client Can Support an In Service Software Upgrade
Note | For the complete task sequence that accomplishes ISSU see theCisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide . |
Verifying the ISSU Process for an MPLS Client
Perform this task to verify that a particular MPLS client can be upgraded successfully during a particular ISSU session. The commands in this task also can be used to display other details about the ISSU MPLS clients, and should be entered in the order described.
Ensure that you have successfully loaded new Cisco IOS XE software onto the standby processor as described in the Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide.
1.
enable
2.
show
issu
clients
3.
show
issu
sessions
clientID
4.
show
issu
negotiated
version
sessionID
5.
show
issu
negotiated
capability
sessionID
6.
show
issu
message
types
clientID
DETAILED STEPS
Configuration Examples for ISSU MPLS Clients
To examine any ISSU client, you must specify its unique client ID when entering the show issu sessions command. If you do not already know that client ID, enter the show issu clientscommand in user EXEC or privileged EXEC mode. Each ISSU client on the network will then be listed, with its client ID and client name on the same line, as shown in the following example:
Router# show issu clients Client_ID = 2, Client_Name = ISSU Proto client, Entity_Count = 1 Client_ID = 3, Client_Name = ISSU RF, Entity_Count = 1 Client_ID = 4, Client_Name = ISSU CF client, Entity_Count = 1 Client_ID = 5, Client_Name = ISSU Network RF client, Entity_Count = 1 Client_ID = 7, Client_Name = ISSU CONFIG SYNC, Entity_Count = 1 Client_ID = 8, Client_Name = ISSU ifIndex sync, Entity_Count = 1 Client_ID = 9, Client_Name = ISSU IPC client, Entity_Count = 1 Client_ID = 10, Client_Name = ISSU IPC Server client, Entity_Count = 1 Client_ID = 11, Client_Name = ISSU Red Mode Client, Entity_Count = 1 Client_ID = 12, Client_Name = ISSU EHSA services client, Entity_Count = 1 Client_ID = 100, Client_Name = ISSU rfs client, Entity_Count = 1 Client_ID = 110, Client_Name = ISSU ifs client, Entity_Count = 1 Client_ID = 1001, Client_Name = OC3POS-6, Entity_Count = 4 Client_ID = 1002, Client_Name = C10K ATM, Entity_Count = 1 Client_ID = 1003, Client_Name = C10K CHSTM1, Entity_Count = 1 Client_ID = 1004, Client_Name = C10K CT3, Entity_Count = 1 Client_ID = 1005, Client_Name = C10K GE, Entity_Count = 1 Client_ID = 1006, Client_Name = C10K ET, Entity_Count = 1 Client_ID = 1007, Client_Name = C10K CHE1T1, Entity_Count = 1 Client_ID = 1009, Client_Name = C10K MFE, Entity_Count = 1 Client_ID = 1010, Client_Name = C10K APS, Entity_Count = 1 Client_ID = 1013, Client_Name = C10K CARD OIR, Entity_Count = 1 Client_ID = 2002, Client_Name = CEF Push ISSU client, Entity_Count = 1 Client_ID = 2003, Client_Name = ISSU XDR client, Entity_Count = 1 Client_ID = 2004, Client_Name = ISSU SNMP client, Entity_Count = 1 Client_ID = 2005, Client_Name = ISSU HDLC Client, Entity_Count = 1 Client_ID = 2006, Client_Name = ISSU QoS client, Entity_Count = 1 Client_ID = 2007, Client_Name = ISSU LSD Label Mgr HA Client, Entity_Count = 1 Client_ID = 2008, Client_Name = ISSU Tableid Client, Entity_Count = 1 Client_ID = 2009, Client_Name = ISSU MPLS VPN Client, Entity_Count = 1 Client_ID = 2010, Client_Name = ARP HA, Entity_Count = 1 Client_ID = 2011, Client_Name = ISSU LDP Client, Entity_Count = 1 Client_ID = 2012, Client_Name = ISSU HSRP Client, Entity_Count = 1 Client_ID = 2013, Client_Name = ISSU ATM Client, Entity_Count = 1 Client_ID = 2014, Client_Name = ISSU FR Client, Entity_Count = 1 Client_ID = 2015, Client_Name = ISSU REDSSOC client, Entity_Count = 1 Client_ID = 2019, Client_Name = ISSU TCP client, Entity_Count = 1 Client_ID = 2020, Client_Name = ISSU BGP client, Entity_Count = 1 Client_ID = 2021, Client_Name = XDR Int Priority ISSU client, Entity_Count = 1 Client_ID = 2022, Client_Name = XDR Proc Priority ISSU client, Entity_Count = 1 Client_ID = 2023, Client_Name = FIB HWIDB ISSU client, Entity_Count = 1 Client_ID = 2024, Client_Name = FIB IDB ISSU client, Entity_Count = 1 Client_ID = 2025, Client_Name = FIB HW subblock ISSU client, Entity_Count = 1 Client_ID = 2026, Client_Name = FIB SW subblock ISSU client, Entity_Count = 1 Client_ID = 2027, Client_Name = Adjacency ISSU client, Entity_Count = 1 Client_ID = 2028, Client_Name = FIB IPV4 ISSU client, Entity_Count = 1 Client_ID = 2030, Client_Name = MFI Pull ISSU client, Entity_Count = 1 Client_ID = 2031, Client_Name = MFI Push ISSU client, Entity_Count = 1 Client_ID = 2051, Client_Name = ISSU CCM Client, Entity_Count = 1 Client_ID = 2052, Client_Name = ISSU PPP SIP CCM Client, Entity_Count = 1 Client_ID = 2053, Client_Name = ISSU MPLS TE Client, Entity_Count = 1 Client_ID = 2054, Client_Name = ISSU process client, Entity_Count = 1 Client_ID = 2089, Client_Name = MPLS LSPV Push client, Entity_Count = 1 . . . . Base Clients: Client_Name = ISSU Proto client Client_Name = ISSU RF Client_Name = ISSU CF client Client_Name = ISSU Network RF client Client_Name = ISSU CONFIG SYNC Client_Name = ISSU ifIndex sync Client_Name = ISSU IPC client Client_Name = ISSU IPC Server client Client_Name = ISSU Red Mode Client Client_Name = ISSU EHSA services client Client_Name = ISSU rfs client Client_Name = ISSU ifs client Client_Name = ISSU EM client Client_Name = ISSU Platform Medialayer Client Client_Name = ISSU FM Client Client_Name = ISSU TCAM Manager Client Client_Name = ISSU L2 Cmn Client Client_Name = ISSU L3 Manager HA Client Client_Name = ISSU L3 Manager Client Client_Name = ISSU CFIB BASE Client Client_Name = ISSU PF CONFIG SYNC Client Client_Name = ISSU MLS CEF Client Client_Name = ISSU Cat6k Logger Client
- Verifying the ISSU Process for an MPLS LDP Client Example
- Verifying the ISSU Process for an MPLS VPN Client Example
- Verifying the ISSU Process for an MPLS VRF (“Table ID”) Client Example
- Verifying the ISSU Process for an MPLS LSD Label Manager HA Client Example
- Verifying the ISSU Process for an MPLS MFI Pull Client Example
- Verifying the ISSU Process for an MPLS MFI Push Client Example
- Verifying the ISSU Process for an MPLS LSPV Push Client Example
- Verifying the ISSU Process for an MPLS TE Client Example
Verifying the ISSU Process for an MPLS LDP Client Example
This example shows how to verify the ISSU process for an LDP client.
The first command shows you whether the LDP client’s old and new software versions are compatible, and therefore are able to make use of the ISSU opportunity:
Router# show issu sessions 2011
---------------------------------------------------------------------
Client_ID = 2011, Entity_ID = 1 :
*** Session_ID = 46, Session_Name = LDP Session :
Peer Peer Negotiate Negotiated Cap Msg Session
UniqueID Sid Role Result GroupID GroupID Signature
4 34 PRIMARY COMPATIBLE 1 1 0
(no policy)
Negotiation Session Info for This Message Session:
Nego_Session_ID = 46
Nego_Session_Name = LDP Session
Transport_Mtu = 3948
Now you can take the session ID displayed in the previous command’s output and enter it into the next command, to see the negotiated message version:
Router# show issu negotiated version 46
Session_ID = 46 :
Message_Type = 1, Negotiated_Version = 2, Message_MTU = 20
Message_Type = 2, Negotiated_Version = 2, Message_MTU = 20
Message_Type = 3, Negotiated_Version = 2, Message_MTU = 4
Next you can enter the same session ID into the following command to display the capability negotiation result:
Router# show issu negotiated capability 46
Session_ID = 46 :
Negotiated_Cap_Entry = 1
Finally, to see which message types and versions are supported by this particular client, you enter the client ID into the following command:
Router# show issu message types 2011
---------------------------------------------------------------------
Client_ID = 2011, Entity_ID = 1 :
Message_Type = 1, Version_Range = 2 ~ 2
Message_Ver = 2, Message_Mtu = 20
Message_Type = 2, Version_Range = 2 ~ 2
Message_Ver = 2, Message_Mtu = 20
Message_Type = 3, Version_Range = 2 ~ 2
Message_Ver = 2, Message_Mtu = 4
Verifying the ISSU Process for an MPLS VPN Client Example
This example shows how to verify the ISSU process for an MPLS VPN client.
The first command shows you whether the VPN client’s old and new software versions are compatible, and therefore are able to make use of the ISSU opportunity:
Router# show issu sessions 2009
---------------------------------------------------------------------
Client_ID = 2009, Entity_ID = 1 :
*** Session_ID = 39, Session_Name = MPLS VPN ISSU Session :
Peer Peer Negotiate Negotiated Cap Msg Session
UniqueID Sid Role Result GroupID GroupID Signature
3 33 PASSIVE COMPATIBLE 1 1 0
(no policy)
Negotiation Session Info for This Message Session:
Nego_Session_ID = 39
Nego_Session_Name = MPLS VPN ISSU Session
Transport_Mtu = 3980
Now you can take the session ID displayed in the previous command’s output and enter it into the next command, in order to see the negotiated message version:
Router# show issu negotiated version 39
Session_ID = 39 :
Message_Type = 1, Negotiated_Version = 1, Message_MTU = 32
Next you can enter the same session ID into the following command to display the capability negotiation result:
Router# show issu negotiated capability 39 Session_ID = 39 : Negotiated_Cap_Entry = 1
Finally,= to see which message types and versions are supported by this particular client, you enter the client ID into the following command:
Router# show issu message types 2009
---------------------------------------------------------------------
Client_ID = 2009, Entity_ID = 1 :
Message_Type = 1, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 32
Verifying the ISSU Process for an MPLS VRF (“Table ID”) Client Example
This example shows how to verify the ISSU process for an MPLS VRF (“Table ID”) client.
The first command shows you whether the VRF client’s old and new software versions are compatible, and therefore are able to make use of the ISSU opportunity:
Router# show issu sessions 2008
---------------------------------------------------------------------
Client_ID = 2008, Entity_ID = 1 :
*** Session_ID = 19, Session_Name = TABLEID ISSU CF :
Peer Peer Negotiate Negotiated Cap Msg Session
UniqueID Sid Role Result GroupID GroupID Signature
4 13 PRIMARY COMPATIBLE 1 1 0
(no policy)
Negotiation Session Info for This Message Session:
Nego_Session_ID = 19
Nego_Session_Name = TABLEID ISSU CF
Transport_Mtu = 3948
Router# show issu sessions 2008
---------------------------------------------------------------------
Client_ID = 2008, Entity_ID = 1 :
*** Session_ID = 19, Session_Name = TABLEID ISSU CF :
Peer Peer Negotiate Negotiated Cap Msg Session
UniqueID Sid Role Result GroupID GroupID Signature
4 13 PRIMARY COMPATIBLE 1 1 0
(no policy)
Negotiation Session Info for This Message Session:
Nego_Session_ID = 19
Nego_Session_Name = TABLEID ISSU CF
Transport_Mtu = 3948
Now you can take the session ID displayed in the previous command’s output and enter it into the next command, in order to see the negotiated message version:
Router# show issu negotiated version 19
Session_ID = 19 :
Message_Type = 1, Negotiated_Version = 1, Message_MTU = 44
Message_Type = 2, Negotiated_Version = 1, Message_MTU = 4
Next you can enter the same session ID into the following command to display the capability negotiation result:
Router# show issu negotiated capability 19 Session_ID = 19 : Negotiated_Cap_Entry = 1
Finally, to see which message types and versions are supported by this particular client, you enter the client ID into the following command:
Router# show issu message types 2008
---------------------------------------------------------------------
Client_ID = 2008, Entity_ID = 1 :
Message_Type = 1, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 44
Message_Type = 2, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 4
Verifying the ISSU Process for an MPLS LSD Label Manager HA Client Example
This example shows how to verify the ISSU process for an MPLS LSD Label Manager HA client.
The first command shows you whether the LSD client’s old and new software versions are compatible, and therefore are able to make use of the ISSU opportunity:
Router# show issu sessions 2007
---------------------------------------------------------------------
Client_ID = 2007, Entity_ID = 1 :
*** Session_ID = 40, Session_Name = lsd_ha :
Peer Peer Negotiate Negotiated Cap Msg Session
UniqueID Sid Role Result GroupID GroupID Signature
4 30 PRIMARY COMPATIBLE 1 1 0
(policy)
Negotiation Session Info for This Message Session:
Nego_Session_ID = 40
Nego_Session_Name = lsd_ha
Transport_Mtu = 3948
Compat_Result: raw_result = COMPATIBLE, policy_result = COMPATIBLE
Now you can take the session ID displayed in the previous command’s output and enter it into the next command, in order to see the negotiated message version:
Router# show issu negotiated version 40
Session_ID = 40 :
Message_Type = 1, Negotiated_Version = 2, Message_MTU = 8
Next you can enter the same session ID into the following command to display the capability negotiation result:
Router# show issu negotiated capability 40
---------------------------------------------------
Client_ID = 2007, Entity_ID = 1, Session_ID = 40 :
Negotiated_Cap_Entry = 1
Finally, to see which message types and versions are supported by this particular client, you enter the client ID into the following command:
Router# show issu message types 2007
---------------------------------------------------------------------
Client_ID = 2007, Entity_ID = 1 :
Message_Type = 1, Version_Range = 1 ~ 2
Message_Ver = 1, Message_Mtu = 12
Message_Ver = 2, Message_Mtu = 8
Verifying the ISSU Process for an MPLS MFI Pull Client Example
This example shows how to verify the ISSU process for an MPLS MFI Pull client.
The first command shows you whether the MFI Pull client’s old and new software versions are compatible, and therefore are able to make use of the ISSU opportunity:
Router# show issu sessions 2030
---------------------------------------------------------------------
Client_ID = 2030, Entity_ID = 1 :
*** Session_ID = 131073, Session_Name = MFI Pull (6):
Peer Peer Negotiate Negotiated Cap Msg Session
UniqueID Sid Role Result GroupID GroupID Signature
7 35 PRIMARY COMPATIBLE 1 1 0
(no policy)
Negotiation Session Info for This Message Session:
Nego_Session_ID = 131073
Nego_Session_Name = MFI Pull (6)
Transport_Mtu = 4056
Now you can take the session ID displayed in the previous command’s output and enter it into the next command, in order to see the negotiated message version:
Router# show issu negotiated version 131073
Session_ID = 131073:
Message_Type = 1006, Negotiated_Version = 1, Message_MTU = 4
Message_Type = 3003, Negotiated_Version = 1, Message_MTU = 12
Next you can enter the same session ID into the following command to display the capability negotiation result:
Router# show issu negotiated capability 131073
Session_ID = 131073 :
Negotiated_Cap_Entry = 1
Finally to see which message types and versions are supported by this particular client, you enter the client ID into the following command:
Router# show issu message types 2030
---------------------------------------------------------------------
Client_ID = 2030, Entity_ID = 1 :
Message_Type = 1006, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 4
Message_Type = 2004, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 12
Verifying the ISSU Process for an MPLS MFI Push Client Example
This example shows how to verify the ISSU process for an MPLS MFI Push client.
The first command shows you whether the MFI Push client’s old and new software versions are compatible, and therefore are able to make use of the ISSU opportunity:
Router# show issu sessions 2031
---------------------------------------------------------------------
Client_ID = 2031, Entity_ID = 1 :
*** Session_ID = 196646, Session_Name = MFI Push (6):
Peer Peer Negotiate Negotiated Cap Msg Session
UniqueID Sid Role Result GroupID GroupID Signature
7 36 PRIMARY COMPATIBLE 1 1 0
(no policy)
Negotiation Session Info for This Message Session:
Nego_Session_ID = 196646
Nego_Session_Name = MFI Push (6)
Transport_Mtu = 4056
Now you can take the session ID displayed in the previous command’s output and enter it into the next command, in order to see the negotiated message version:
Router# show issu negotiated version 196646
Session_ID = 196646:
Message_Type = 101, Negotiated_Version = 1, Message_MTU = 17
Message_Type = 105, Negotiated_Version = 1, Message_MTU = 31
Next you can enter the same session ID into the following command to display the capability negotiation result:
Router# show issu negotiated capability 196646
Session_ID = 196646 :
Negotiated_Cap_Entry = 1
Finally to see which message types and versions are supported by this particular client, you enter the client ID into the following command:
Router# show issu message types 2031
---------------------------------------------------------------------
Client_ID = 2031, Entity_ID = 1 :
Message_Type = 5002, Version_Range = 1 ~ 2
Message_Ver = 1, Message_Mtu = 10
Message_Type = 5018, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 39
Verifying the ISSU Process for an MPLS LSPV Push Client Example
This example shows how to verify the ISSU process for an MPLS LSVP Push client.
The first command shows you whether the LSPV Push client’s old and new software versions are compatible, and therefore are able to make use of the ISSU opportunity:
Router# show issu sessions 2089
---------------------------------------------------------------------
Client_ID = 2089, Entity_ID = 1 :
*** Session_ID = 45, Session_Name = MPLS LSPV Push (6 ):
Peer Peer Negotiate Negotiated Cap Msg Session
UniqueID Sid Role Result GroupID GroupID Signature
7 36 PRIMARY COMPATIBLE 1 1 0
(no policy)
Negotiation Session Info for This Message Session:
Nego_Session_ID = 45
Nego_Session_Name = MPLS LSPV Push (6 )
Transport_Mtu = 1438
Now you can take the session ID displayed in the previous command’s output and enter it into the next command, in order to see the negotiated message version:
Router# show issu negotiated version 45 Session_ID = 45: Message_Type = 0, Negotiated_Version = 1, Message_MTU = 74 Message_Type = 1, Negotiated_Version = 1, Message_MTU = 120 Message_Type = 2, Negotiated_Version = 1, Message_MTU = 120 Message_Type = 3, Negotiated_Version = 1, Message_MTU = 5122 Message_Type = 4, Negotiated_Version = 1, Message_MTU = 6
Next you can enter the same session ID into the following command to display the capability negotiation result:
Router# show issu negotiated capability 45 Session_ID = 45: Cap_Type = 0 Cap_Result = 1 No cap value assigned
Finally to see which message types and versions are supported by this particular client, you enter the client ID into the following command:
Router# show issu message types 2089
---------------------------------------------------------------------
Client_ID = 2089, Entity_ID = 1 :
Message_Type = 0, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 74
Message_Type = 1, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 120
Message_Type = 2, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 120
Message_Type = 3, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 5122
Message_Type = 4, Version_Range = 1 ~ 1
Message_Ver = 1, Message_Mtu = 6
Verifying the ISSU Process for an MPLS TE Client Example
This example shows how to verify the ISSU process for an MPLS TE client.
The first command shows you whether the TE client’s old and new software versions are compatible, and therefore are able to make use of the ISSU opportunity:
Router# show issu sessions 2053
---------------------------------------------------------------------
Client_ID = 2053, Entity_ID = 1 :
*** Session_ID = 84, Session_Name = RSVP HA Session :
Peer Peer Negotiate Negotiated Cap Msg Session
UniqueID Sid Role Result GroupID GroupID Signature
22 94 PRIMARY COMPATIBLE 1 1 0
(no policy)
Negotiation Session Info for This Message Session:
Nego_Session_ID = 84
Nego_Session_Name = RSVP HA Session
Transport_Mtu = 1392
Now you can take the session ID displayed in the previous command’s output and enter it into the next command, in order to see the negotiated message version:
Router# show issu negotiated version 84
Session_ID = 84 :
Message_Type = 1, Negotiated_Version = 2, Message_MTU = 1024
Next you can enter the same session ID into the following command to display the capability negotiation result:
Router# show issu negotiated capability 84
Session_ID = 84 :
Cap_Type = 0, Cap_Result = 1 No cap value assigned
Finally to see which message types and versions are supported by this particular client, you enter the client ID into the following command:
Router# show issu message types 2053
---------------------------------------------------------------------
Client_ID = 2053, Entity_ID = 1 :
Message_Type = 1, Version_Range = 1 ~ 2
Message_Ver = 1, Message_Mtu = 1024
Message_Ver = 2, Message_Mtu = 1024
Additional References
The following sections provide references related to the ISSU MPLS Clients feature.
Related Documents
|
Related Topic |
Document Title |
|---|---|
|
ISSU process |
|
|
High availability commands |
Cisco IOS High Availability Command Reference |
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 XE 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 website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies. To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds. Access to most tools on the Cisco Support website requires a Cisco.com user ID and password. |
Feature Information for ISSU MPLS Clients
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 . An account on Cisco.com is not required.|
Feature Name |
Releases |
Feature Information |
|---|---|---|
|
ISSU MPLS--LDP |
Cisco IOS XE Release 2.1 |
This feature allows In Service Software Upgrade (ISSU) support for the Label Distribution Protocol (LDP) and Multiprotocol Label Switching (MPLS) Forwarding. MPLS applications can be upgraded using the In Service Software Upgrade (ISSU) process. Thus, MPLS applications are considered ISSU’s MPLS clients. The ISSU process allows Cisco IOS XE software to be updated or otherwise modified while packet forwarding continues. In Cisco IOS XE Release 2.1, this feature was introduced on Cisco ASR 1000 Series Aggregation Services Routers. |
|
|
|
The following commands were introduced or modified: show issu clients, show issu entities, show issu message types, show issu negotiated, show issu outage, show issu sessions. |
|
ISSU--MPLS VPN (Support for IPv4 VPNs) |
Cisco IOS XE Release 2.1 |
This feature supports In Service Software Upgrade (ISSU) for Multiprotocol Label Switching (MPLS) Virtual Private networks (VPNs) for IPv4 address families only. In Cisco IOS XE Release 2.1, this feature was introduced on Cisco ASR 1000 Series Aggregation Services Routers. No commands were introduced or modified for this feature. |
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ISSU--MPLS TE |
Cisco IOS XE Release 2.3 |
This feature allows upgrade or downgrade of compatible Cisco IOS XE software images on the back up Route Processor (RP) while the device is operational and passing traffic on Multiprotocol Label Switching (MPLS) traffic engineering (TE) tunnels. In Cisco IOS XE Release 2.3, this feature was introduced on Cisco ASR 1000 Series Aggregation Services Routers. No commands were introduced or modified for this feature. |
Glossary
IS--intermediate system.
ISSU--In Service Software Upgrade.
LACP--Link Aggregration Control Protocol.
LDP--Label Distribution Protocol.
MFI--Multiprotocol Label Switching Forwarding Infrastructure.
MPLS--Multiprotocol Label Switching.
OAM--Operation, Administration, and Management.
PagP--port aggregation Protocol.
PPP--Point to Point protocol.
RP--Route Processor.
RSVP GR--Resource Reservation Protocol graceful restart.
TE--traffic engineering.
VPN--Virtual Private Network.
VRF--virtual routing and forwarding.