02-03-2014 04:40 AM - edited 03-07-2019 05:58 PM
Hello,
I have problem with vPC`+ in N5K. I think that all my setup it's ok but my peers are not reachables in fabricpath in the vpc domain.
n5k-del-1(config)# show vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 21
vPC+ switch id : 121
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
vPC fabricpath status : peer is not reachable through fabricpath
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 0
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 up -
n5k-del-2(config)# show vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 21
vPC+ switch id : 121
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
vPC fabricpath status : peer is not reachable through fabricpath
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary
Number of vPCs configured : 0
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
Auto-recovery status : Enabled (timeout = 240 seconds)
vPC Peer-link status
---------------------------------------------------------------------
id Port Status Active vlans
-- ---- ------ --------------------------------------------------
1 Po1 up -
n5k-del-1(config)# show run int port-channel 1
!Command: show running-config interface port-channel1
!Time: Tue Mar 3 12:31:16 2009
version 6.0(2)N2(3)
interface port-channel1
switchport mode fabricpath
spanning-tree port type network
vpc peer-link
n5k-del-1(config)# show port-channel summary
Flags: D - Down P - Up in port-channel (members)
I - Individual H - Hot-standby (LACP only)
s - Suspended r - Module-removed
S - Switched R - Routed
U - Up (port-channel)
M - Not in use. Min-links not met
--------------------------------------------------------------------------------
Group Port- Type Protocol Member Ports
Channel
--------------------------------------------------------------------------------
1 Po1(SU) Eth LACP Eth1/1(P) Eth1/2(P) Eth1/17(P)
Eth1/18(P)
n5k-del-2(config)# show run int port-channel 1
!Command: show running-config interface port-channel1
!Time: Tue Mar 3 12:33:57 2009
version 6.0(2)N2(3)
interface port-channel1
switchport mode fabricpath
spanning-tree port type network
vpc peer-link
n5k-del-2(config)# show port-channel summary
Flags: D - Down P - Up in port-channel (members)
I - Individual H - Hot-standby (LACP only)
s - Suspended r - Module-removed
S - Switched R - Routed
U - Up (port-channel)
M - Not in use. Min-links not met
--------------------------------------------------------------------------------
Group Port- Type Protocol Member Ports
Channel
--------------------------------------------------------------------------------
1 Po1(SU) Eth LACP Eth1/1(P) Eth1/2(P) Eth1/17(P)
Eth1/18(P)
n5k-del-1(config)# show run fabricpath
!Command: show running-config fabricpath
!Time: Tue Mar 3 12:32:02 2009
version 6.0(2)N2(3)
install feature-set fabricpath
feature-set fabricpath
vpc domain 21
fabricpath switch-id 121
interface port-channel1
switchport mode fabricpath
interface Ethernet1/1
switchport mode fabricpath
interface Ethernet1/2
switchport mode fabricpath
interface Ethernet1/17
switchport mode fabricpath
interface Ethernet1/18
switchport mode fabricpath
fabricpath domain default
fabricpath switch-id 21
n5k-del-2(config)# show run fabricpath
!Command: show running-config fabricpath
!Time: Tue Mar 3 12:31:17 2009
version 6.0(2)N2(3)
install feature-set fabricpath
feature-set fabricpath
vpc domain 21
fabricpath switch-id 121
interface port-channel1
switchport mode fabricpath
interface Ethernet1/1
switchport mode fabricpath
interface Ethernet1/2
switchport mode fabricpath
interface Ethernet1/17
switchport mode fabricpath
interface Ethernet1/18
switchport mode fabricpath
fabricpath domain default
fabricpath switch-id 22
n5k-del-1(config)# show run vpc
!Command: show running-config vpc
!Time: Tue Mar 3 12:36:23 2009
version 6.0(2)N2(3)
feature vpc
vpc domain 21
role priority 100
peer-keepalive destination 10.0.0.22 source 10.0.0.21
auto-recovery
fabricpath switch-id 121
ip arp synchronize
interface port-channel1
vpc peer-link
n5k-del-2(config)# show run vpc
!Command: show running-config vpc
!Time: Tue Mar 3 12:36:01 2009
version 6.0(2)N2(3)
feature vpc
vpc domain 21
role priority 110
peer-keepalive destination 10.0.0.21 source 10.0.0.22
auto-recovery
fabricpath switch-id 121
ip arp synchronize
interface port-channel1
vpc peer-link
any idea?
Best Regards
Solved! Go to Solution.
02-03-2014 11:24 AM
Hi,
The issue you have is that you don't have any VLANs configured and operating in FabricPath mode i.e.,
!
vlan 100
mode fabricpath
!
I just set this up using your configuration and see exactly the same behavior until a VLAN is created that then has mode fabricpath configured.
If you look at the peer-link state in the FabricPath topology and active the VLANs I think you'll see the forwarding state of the interface is DOWN and there are no active VLANs.
N5K-p10-1# sh fabricpath isis interface port-channel 101
Fabricpath IS-IS domain: default
Interface: port-channel101
Status: protocol-up/link-up/admin-up
Index: 0x0001, Local Circuit ID: 0x01, Circuit Type: L1
No authentication type/keychain configured
Authentication check specified
Extended Local Circuit ID: 0x16000064, P2P Circuit ID: 0000.0000.0000.00
Retx interval: 5, Retx throttle interval: 66 ms
LSP interval: 33 ms, MTU: 1500
P2P Adjs: 1, AdjsUp: 1, Priority 64
Hello Interval: 10, Multi: 3, Next IIH: 00:00:03
Level Adjs AdjsUp Metric CSNP Next CSNP Last LSP ID
1 1 1 20 60 00:00:35 ffff.ffff.ffff.ff-ff
Topologies enabled:
Topology Metric MetricConfig Forwarding
0 20 no DOWN
N5K-p10-1# sh fabricpath topology interface port-channel 101
Interface Topo-Description Topo-ID Topo-IF-State
------------------- -------------------------------- ---------- -------------
port-channel101 0 0 Down
N5K-p10-1# sh fabricpath topology vlan active
Topo-Description Topo-ID Active VLAN List
-------------------------------- --------- -------------------------------------
0 0 --
If you then change the VLAN mode from mode ce to mode fabricpath (note that you need to exit the vlan configuration mode for the change to take effect), you should see the following SYSLOG message:
2014 Feb 3 12:50:23 N5K-p10-1 %ETHPORT-3-IF_ERROR_VLANS_REMOVED: VLANs 99-100 on Interface port-channel101 are removed from suspended state.
2014 Feb 3 12:50:23 N5K-p10-1 %L3VM-5-FP_TPG_INTF_UP: Interface port-channel101 up in fabricpath topology 0
And then show vpc will indicate that the vPC fabricpath status as "peer is reachable through fabricpath"
N5K-p10-1# sh vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 21
vPC+ switch id : 121
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
vPC fabricpath status : peer is reachable through fabricpath
[snip]
N5K-p10-1# show fabricpath isis interface port-channel 101 Fabricpath IS-IS domain: default Interface: port-channel101 Status: protocol-up/link-up/admin-up Index: 0x0001, Local Circuit ID: 0x01, Circuit Type: L1 No authentication type/keychain configured Authentication check specified Extended Local Circuit ID: 0x16000064, P2P Circuit ID: 0000.0000.0000.00 Retx interval: 5, Retx throttle interval: 66 ms LSP interval: 33 ms, MTU: 1500 P2P Adjs: 1, AdjsUp: 1, Priority 64 Hello Interval: 10, Multi: 3, Next IIH: 00:00:01 Level Adjs AdjsUp Metric CSNP Next CSNP Last LSP ID 1 1 1 20 60 00:00:47 ffff.ffff.ffff.ff-ff Topologies enabled: Topology Metric MetricConfig Forwarding 0 20 no UP TN5K-p10-1# show fabricpath topology vlan active Topo-Description Topo-ID Active VLAN List -------------------------------- --------- ------------------------------------- 0 0 99-100Regards
02-03-2014 06:50 AM
Hi,
Is your port-channel 1 interface which is configured as your vPC peer-link operating as a FabricPath interface? Can you post the output of the show fabricpath isis interface brief command.
Regards
02-03-2014 06:56 AM
Hello,
n5k-del-1(config-if)# show fabricpath isis interface brief
Fabricpath IS-IS domain: default
Interface Type Idx State Circuit MTU Metric Priority Adjs/AdjsUp
--------------------------------------------------------------------------------
port-channel1 P2P 1 Up/Ready 0x01/L1 1500 10 64 1/1
n5k-del-2(config-if)# show fabricpath isis interface brief
Fabricpath IS-IS domain: default
Interface Type Idx State Circuit MTU Metric Priority Adjs/AdjsUp
--------------------------------------------------------------------------------
port-channel1 P2P 1 Up/Ready 0x01/L1 1500 10 64 1/1
Regards.
02-03-2014 11:24 AM
Hi,
The issue you have is that you don't have any VLANs configured and operating in FabricPath mode i.e.,
!
vlan 100
mode fabricpath
!
I just set this up using your configuration and see exactly the same behavior until a VLAN is created that then has mode fabricpath configured.
If you look at the peer-link state in the FabricPath topology and active the VLANs I think you'll see the forwarding state of the interface is DOWN and there are no active VLANs.
N5K-p10-1# sh fabricpath isis interface port-channel 101
Fabricpath IS-IS domain: default
Interface: port-channel101
Status: protocol-up/link-up/admin-up
Index: 0x0001, Local Circuit ID: 0x01, Circuit Type: L1
No authentication type/keychain configured
Authentication check specified
Extended Local Circuit ID: 0x16000064, P2P Circuit ID: 0000.0000.0000.00
Retx interval: 5, Retx throttle interval: 66 ms
LSP interval: 33 ms, MTU: 1500
P2P Adjs: 1, AdjsUp: 1, Priority 64
Hello Interval: 10, Multi: 3, Next IIH: 00:00:03
Level Adjs AdjsUp Metric CSNP Next CSNP Last LSP ID
1 1 1 20 60 00:00:35 ffff.ffff.ffff.ff-ff
Topologies enabled:
Topology Metric MetricConfig Forwarding
0 20 no DOWN
N5K-p10-1# sh fabricpath topology interface port-channel 101
Interface Topo-Description Topo-ID Topo-IF-State
------------------- -------------------------------- ---------- -------------
port-channel101 0 0 Down
N5K-p10-1# sh fabricpath topology vlan active
Topo-Description Topo-ID Active VLAN List
-------------------------------- --------- -------------------------------------
0 0 --
If you then change the VLAN mode from mode ce to mode fabricpath (note that you need to exit the vlan configuration mode for the change to take effect), you should see the following SYSLOG message:
2014 Feb 3 12:50:23 N5K-p10-1 %ETHPORT-3-IF_ERROR_VLANS_REMOVED: VLANs 99-100 on Interface port-channel101 are removed from suspended state.
2014 Feb 3 12:50:23 N5K-p10-1 %L3VM-5-FP_TPG_INTF_UP: Interface port-channel101 up in fabricpath topology 0
And then show vpc will indicate that the vPC fabricpath status as "peer is reachable through fabricpath"
N5K-p10-1# sh vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 21
vPC+ switch id : 121
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
vPC fabricpath status : peer is reachable through fabricpath
[snip]
N5K-p10-1# show fabricpath isis interface port-channel 101 Fabricpath IS-IS domain: default Interface: port-channel101 Status: protocol-up/link-up/admin-up Index: 0x0001, Local Circuit ID: 0x01, Circuit Type: L1 No authentication type/keychain configured Authentication check specified Extended Local Circuit ID: 0x16000064, P2P Circuit ID: 0000.0000.0000.00 Retx interval: 5, Retx throttle interval: 66 ms LSP interval: 33 ms, MTU: 1500 P2P Adjs: 1, AdjsUp: 1, Priority 64 Hello Interval: 10, Multi: 3, Next IIH: 00:00:01 Level Adjs AdjsUp Metric CSNP Next CSNP Last LSP ID 1 1 1 20 60 00:00:47 ffff.ffff.ffff.ff-ff Topologies enabled: Topology Metric MetricConfig Forwarding 0 20 no UP TN5K-p10-1# show fabricpath topology vlan active Topo-Description Topo-ID Active VLAN List -------------------------------- --------- ------------------------------------- 0 0 99-100Regards
02-04-2014 08:09 AM
Hi steve,
You are right, i have configured one vlan as fabricpath mode and the peer is reachable.
Thks for your help.
Regards.
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