IS-IS on ASR9006 not working

[siddiqirf]

Hi All

I am having issues with running  IS-IS between my ASR9006 and Cat6500 switch.

I am running IOS XR  4.0.3 with Mini and MPLS packages enabled.

My configuration on ASR is below, please can someone confrim my configuration on the ASR9000 is correct and why its not working?

cdp

line console

exec-timeout 0 0

length 0

!

interface Loopback0

description MANAGEMENT LOOPBACK

ipv4 address 10.255.254.7 255.255.255.255

!

interface MgmtEth0/RSP0/CPU0/0

ipv4 address 10.1.1.2 255.255.255.0

!

interface MgmtEth0/RSP0/CPU0/1

shutdown

!

interface MgmtEth0/RSP1/CPU0/0

shutdown

!

interface MgmtEth0/RSP1/CPU0/1

shutdown

!

interface TenGigE0/0/0/0

description CORE LINK TO .........

cdp

ipv4 address 10.205.0.70 255.255.255.252

!

interface TenGigE0/0/0/1

description CORE LINK TO ..........

cdp

ipv4 address 10.205.0.78 255.255.255.252

!

interface TenGigE0/0/0/2

shutdown

!

interface TenGigE0/0/0/3

shutdown

!

interface TenGigE0/1/0/0

shutdown

!

interface TenGigE0/1/0/1

shutdown

!

interface TenGigE0/1/0/2

shutdown

!

interface TenGigE0/1/0/3

shutdown

router isis 1

is-type level-1

net 49.0000.1025.5254.0007.00

address-family ipv6 unicast

  single-topology

!

interface Loopback0

  circuit-type level-1

  address-family ipv4 unicast

  !

!

interface TenGigE0/0/0/0

  circuit-type level-1

  address-family ipv4 unicast

  !

!

interface TenGigE0/0/0/1

  circuit-type level-1

  address-family ipv4 unicast

  !

!

!

mpls ldp

router-id Loopback0

discovery hello holdtime 15

discovery hello interval 5

interface TenGigE0/0/0/0

!

interface TenGigE0/0/0/1

!

!

end

RP/0/RSP0/CPU0:

[Peter Paluch]

Hello,

Can you describe your issues in more detail? So far you have only indicated that something is not correct but it is not clear which problems exactly are you dealing with.

What is the output of the following commands:

• show isis protocol
• show isis interface
• show isis adjacency
• show isis database

Also, are you perhaps using the wide metrics on your Cat6500? Your ASR is not currently configured for wide metrics, and this incompatibility usually results in no prefixes being populated into the routing table.

Best regards,

Peter

[siddiqirf]

Here are the output to the show commands requested

RP/0/RSP0/CPU0:#show isis protocol
Tue Jul 12 07:52:22.863 UTC

IS-IS Router: 1
  System Id: 1025.5254.0007
  IS Levels: level-1
  Manual area address(es):
    49.0000
  Routing for area address(es):
    49.0000
  Non-stop forwarding: Disabled
  Most recent startup mode: Cold Restart
  Topologies supported by IS-IS:
    IPv4 Unicast
      Level-1
        Metric style (generate/accept): Narrow/Narrow
        Metric: 10
        ISPF status: Disabled
      No protocols redistributed
      Distance: 115
    IPv6 Unicast
      Level-1
        Metric style (generate/accept): Narrow/Narrow
        Metric: 10
        ISPF status: Disabled
      No protocols redistributed
      Distance: 115
  Interfaces supported by IS-IS:
    Loopback0 is running passively (active in configuration)
    TenGigE0/0/0/0 is running passively (active in configuration)
    TenGigE0/0/0/1 is running passively (active in configuration)
================================================
RP/0/RSP0/CPU0:XCA-ASR-1b#show isis interface
Tue Jul 12 07:52:30.017 UTC

IS-IS 1 Interfaces
Loopback0                   Enabled
  Adjacency Formation:      Disabled (No cfg topology can participate)
  Prefix Advertisement:     Enabled
  BFD:                      Disabled
  BFD Min Interval:         150
  BFD Multiplier:           3
 
  Circuit Type:             level-1
  Media Type:               Loop
  Circuit Number:           0
  CLNS I/O
    Protocol State:         Up
    MTU:                    1500
 
  IPv4 Unicast Topology:    Enabled
    Adjacency Formation:    Disabled (IPv6 Unicast not cfg on intf)
    Prefix Advertisement:   Running
    Metric (L1/L2):         10/10
    MPLS LDP Sync (L1/L2):  Disabled/Disabled
  IPv6 Unicast Topology:    Disabled (Not cfg on the intf)
 
  IPv4 Address Family:      Enabled
    Protocol State:         Up
    Forwarding Address(es): 0.0.0.0
    Global Prefix(es):      10.255.254.7/32
  IPv6 Address Family:      Disabled (No topology enabled which uses IPv6)
 
TenGigE0/0/0/0              Enabled
  Adjacency Formation:      Disabled (No cfg topology can participate)
  Prefix Advertisement:     Enabled
  BFD:                      Disabled
  BFD Min Interval:         150
  BFD Multiplier:           3
 
  Circuit Type:             level-1
  Media Type:               LAN
  Circuit Number:           0
  CLNS I/O
    Protocol State:         Up
    MTU:                    1497
    SNPA:                   f866.f208.97d0
    Layer-2 MCast Groups Membership:
      All Level-1 ISs:      Yes
 
  IPv4 Unicast Topology:    Enabled
    Adjacency Formation:    Disabled (IPv6 Unicast not cfg on intf)
    Prefix Advertisement:   Running
    Metric (L1/L2):         10/10
    MPLS LDP Sync (L1/L2):  Disabled/Disabled
  IPv6 Unicast Topology:    Disabled (Not cfg on the intf)
 
  IPv4 Address Family:      Enabled
    Protocol State:         Up
    Forwarding Address(es): 10.205.0.70
    Global Prefix(es):      10.205.0.68/30
  IPv6 Address Family:      Disabled (No topology enabled which uses IPv6)
 
TenGigE0/0/0/1              Enabled
  Adjacency Formation:      Disabled (No cfg topology can participate)
  Prefix Advertisement:     Enabled
  BFD:                      Disabled
  BFD Min Interval:         150
  BFD Multiplier:           3
 
  Circuit Type:             level-1
  Media Type:               LAN
  Circuit Number:           0
  CLNS I/O
    Protocol State:         Up
    MTU:                    1497
    SNPA:                   f866.f208.97d1
    Layer-2 MCast Groups Membership:
      All Level-1 ISs:      Yes
 
  IPv4 Unicast Topology:    Enabled
    Adjacency Formation:    Disabled (IPv6 Unicast not cfg on intf)
    Prefix Advertisement:   Running
    Metric (L1/L2):         10/10
    MPLS LDP Sync (L1/L2):  Disabled/Disabled
  IPv6 Unicast Topology:    Disabled (Not cfg on the intf)
 
  IPv4 Address Family:      Enabled
    Protocol State:         Up
    Forwarding Address(es): 10.205.0.78
    Global Prefix(es):      10.205.0.76/30
  IPv6 Address Family:      Disabled (No topology enabled which uses IPv6)
================================================
RP/0/RSP0/CPU0:#show isis adjacency
Tue Jul 12 07:52:37.889 UTC

IS-IS 1 Level-1 adjacencies:
System Id      Interface        SNPA           State Hold Changed  NSF BFD
================================================
RP/0/RSP0/CPU0:#show isis database
Tue Jul 12 07:52:43.754 UTC

IS-IS 1 (Level-1) Link State Database
LSPID                 LSP Seq Num  LSP Checksum  LSP Holdtime  ATT/P/OL
XCA-ASR-1b.00-00    * 0x000000ce   0x1199        584             0/0/0

Total Level-1 LSP count: 1     Local Level-1 LSP count: 1
RP/0/RSP0/CPU0:XCA-ASR-1b#

[Peter Paluch]

Hello,

Try removing the entire address-family ipv6 unicast section from your configuration, as you currently do not appear to need the IPv6. It seems that the router tries to run IPv6 IS-IS on your interfaces and they do not have IPv6 enabled (note the "IPv6 Unicast not cfg on intf" complaint on each interface).

Best regards,

Peter

[Xin Cheng]

if you enabled "address-family ipv6 unicast" or "address-family ipv4 unicast" in ISIS, IPv4 or IPv6 must be turned on inteface level, otherwise you will get the message like this"

  Interfaces supported by IS-IS:

    Loopback0 is running passively (passive in configuration)

    GigabitEthernet0/5/1/0 is running passively (active in configuration)

    GigabitEthernet0/5/1/1 is running passively (active in configuration)

"