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對于N5K可以滿足如下的拓撲連接FEX，但是測試的時候，總是發現FEX無法連接成功，只有一個N5K的接口連接N2K可以顯示Online。
原因：該情況雖然N5K可以支持，但是需要先建立vPC，N2K才能在兩臺N5K都顯示Online，因為對于N2K來說，上行它視作的是一臺設備。
在完成上述測試前，先試了試static Pinning mode和Port-channel mode。
1、static Pinning mode
switch(config)# fex 158
switch(config-fex)# pinning max-links 2
Change in Max-links will cause traffic disruption.
switch(config)# int ethernet 1/3, ethernet 1/1
switch(config-if-range)# switchport mode fex-fabric
switch(config-if-range)# fex associate 158
switch# sho fex detail
FEX: 158 Description: FEX0158 state: Online
FEX version: 7.1(4)N1(1) [Switch version: 7.1(4)N1(1)]
FEX Interim version: 7.1(4)N1(1)
Switch Interim version: 7.1(4)N1(1)
Extender Serial: SSI15420LK0
Extender Model: N2K-C2248TP-1GE, Part No: 73-13232-01
Card Id: 99, Mac Addr: 0c:85:25:79:e5:02, Num Macs: 64
Module Sw Gen: 12594 [Switch Sw Gen: 21]
post level: complete
pinning-mode: static Max-links: 2
Fabric port for control traffic: Eth2/3
FCoE Admin: false
FCoE Oper: true
FCoE FEX AA Configured: false
Fabric interface state:
Eth2/1 - Interface Up. State: Active
Eth2/3 - Interface Up. State: Active
Fex Port State Fabric Port
Eth258/1/1 Down Eth2/1
Eth258/1/2 Down Eth2/1
Eth258/1/3 Down Eth2/1
Eth258/1/4 Down Eth2/1
Eth258/1/5 Down Eth2/1
Eth258/1/6 Down Eth2/1
Eth258/1/7 Down Eth2/1
Eth258/1/8 Down Eth2/1
Eth258/1/9 Down Eth2/1
Eth258/1/10 Down Eth2/1
Eth258/1/11 Down Eth2/1
Eth258/1/12 Down Eth2/1
Eth258/1/13 Down Eth2/1
Eth258/1/14 Down Eth2/1
Eth258/1/15 Down Eth2/1
Eth258/1/16 Down Eth2/1
Eth258/1/17 Down Eth2/1
Eth258/1/18 Down Eth2/1
Eth258/1/19 Down Eth2/1
Eth258/1/20 Down Eth2/1
Eth258/1/21 Down Eth2/1
Eth258/1/22 Down Eth2/1
Eth258/1/23 Down Eth2/1
Eth258/1/24 Down Eth2/1
Eth258/1/25 Down Eth2/3
Eth258/1/26 Down Eth2/3
Eth258/1/27 Down Eth2/3
Eth258/1/28 Down Eth2/3
Eth258/1/29 Down Eth2/3
Eth258/1/30 Down Eth2/3
Eth258/1/31 Down Eth2/3
Eth258/1/32 Down Eth2/3
Eth258/1/33 Down Eth2/3
Eth258/1/34 Down Eth2/3
Eth258/1/35 Down Eth2/3
Eth258/1/36 Down Eth2/3
Eth258/1/37 Down Eth2/3
Eth258/1/38 Down Eth2/3
Eth258/1/39 Down Eth2/3
Eth258/1/40 Down Eth2/3
Eth258/1/41 Down Eth2/3
Eth258/1/42 Down Eth2/3
Eth258/1/43 Down Eth2/3
Eth258/1/44 Down Eth2/3
Eth258/1/45 Down Eth2/3
Eth258/1/46 Down Eth2/3
Eth258/1/47 Down Eth2/3
Eth258/1/48 Down Eth2/3
Logs:
08/20/2009 00:29:36.490780: Module register received
08/20/2009 00:29:36.494678: Registration response sent
08/20/2009 00:29:36.520711: create module inserted event.
08/20/2009 00:29:36.521928: Module Online Sequence
08/20/2009 00:29:42.635136: Module Online
switch# show fex
FEX FEX FEX FEX Fex
Number Description State Model Serial
------------------------------------------------------------------------
158 FEX0158 Online N2K-C2248TP-1GE SSI15420LK0
switch(config-if-range)# sho interface ethernet 1/1 fex-intf
Fabric FEX
Interface Interfaces
---------------------------------------------------
Eth2/1 Eth258/1/24 Eth258/1/23 Eth258/1/22 Eth258/1/21
Eth258/1/20 Eth258/1/19 Eth258/1/18 Eth258/1/17
Eth258/1/16 Eth258/1/15 Eth258/1/14 Eth258/1/13
Eth258/1/12 Eth258/1/11 Eth258/1/10 Eth258/1/9
Eth258/1/8 Eth258/1/7 Eth258/1/6 Eth258/1/5
Eth258/1/4 Eth258/1/3 Eth258/1/2 Eth258/1/1
switch(config-if-range)# sho interface ethernet 1/3 fex-intf
Fabric FEX
Interface Interfaces
---------------------------------------------------
Eth2/3 Eth258/1/48 Eth258/1/47 Eth258/1/46 Eth258/1/45
Eth258/1/44 Eth258/1/43 Eth258/1/42 Eth258/1/41
Eth258/1/40 Eth258/1/39 Eth258/1/38 Eth258/1/37
Eth258/1/36 Eth258/1/35 Eth258/1/34 Eth258/1/33
Eth258/1/32 Eth258/1/31 Eth258/1/30 Eth258/1/29
Eth258/1/28 Eth258/1/27 Eth258/1/26 Eth258/1/25
測試Port-channel mode
switch(config)# default interface ethernet 1/1, ethernet 1/3
2009 Aug 20 00:33:00 switch %$ VDC-1 %$ %NOHMS-2-NOHMS_ENV_FEX_OFFLINE: FEX-158 Off-line (Serial Number SSI15420LK0)
2009 Aug 20 00:33:00 switch %$ VDC-1 %$ %PFMA-2-FEX_STATUS: Fex 158 is offline
switch(config)# int ethernet 1/1, ethernet 1/3
switch(config-if-range)# channel-group 1
switch(config-if-range)# int po 1
switch(config-if)# switchport mode fex-fabric
switch(config-if)# fex 158
switch(config)# fex 158
switch(config-fex)# pinning max-links 1
switch# sho fex
FEX FEX FEX FEX Fex
Number Description State Model Serial
------------------------------------------------------------------------
158 FEX0158 Online N2K-C2248TP-1GE SSI15420LK0
switch# sho fex detail
FEX: 158 Description: FEX0158 state: Online
FEX version: 7.1(4)N1(1) [Switch version: 7.1(4)N1(1)]
FEX Interim version: 7.1(4)N1(1)
Switch Interim version: 7.1(4)N1(1)
Extender Serial: SSI15420LK0
Extender Model: N2K-C2248TP-1GE, Part No: 73-13232-01
Card Id: 99, Mac Addr: 0c:85:25:79:e5:02, Num Macs: 64
Module Sw Gen: 12594 [Switch Sw Gen: 21]
post level: complete
pinning-mode: static Max-links: 1
Fabric port for control traffic: Eth2/3
FCoE Admin: false
FCoE Oper: true
FCoE FEX AA Configured: false
Fabric interface state:
Po1 - Interface Up. State: Active
Eth2/1 - Interface Up. State: Active
Eth2/3 - Interface Up. State: Active
Fex Port State Fabric Port
Eth258/1/1 Down Po1
Eth258/1/2 Down Po1
Eth258/1/3 Down Po1
Eth258/1/4 Down Po1
Eth258/1/5 Down Po1
Eth258/1/6 Down Po1
Eth258/1/7 Down Po1
Eth258/1/8 Down Po1
Eth258/1/9 Down Po1
Eth258/1/10 Down Po1
Eth258/1/11 Down Po1
Eth258/1/12 Down Po1
Eth258/1/13 Down Po1
Eth258/1/14 Down Po1
Eth258/1/15 Down Po1
Eth258/1/16 Down Po1
Eth258/1/17 Down Po1
Eth258/1/18 Down Po1
Eth258/1/19 Down Po1
Eth258/1/20 Down Po1
Eth258/1/21 Down Po1
Eth258/1/22 Down Po1
Eth258/1/23 Down Po1
Eth258/1/24 Down Po1
Eth258/1/25 Down Po1
Eth258/1/26 Down Po1
Eth258/1/27 Down Po1
Eth258/1/28 Down Po1
Eth258/1/29 Down Po1
Eth258/1/30 Down Po1
Eth258/1/31 Down Po1
Eth258/1/32 Down Po1
Eth258/1/33 Down Po1
Eth258/1/34 Down Po1
Eth258/1/35 Down Po1
Eth258/1/36 Down Po1
Eth258/1/37 Down Po1
Eth258/1/38 Down Po1
Eth258/1/39 Down Po1
Eth258/1/40 Down Po1
Eth258/1/41 Down Po1
Eth258/1/42 Down Po1
Eth258/1/43 Down Po1
Eth258/1/44 Down Po1
Eth258/1/45 Down Po1
Eth258/1/46 Down Po1
Eth258/1/47 Down Po1
Eth258/1/48 Down Po1
Logs:
08/20/2009 00:29:36.490780: Module register received
08/20/2009 00:29:36.494678: Registration response sent
08/20/2009 00:29:36.520711: create module inserted event.
08/20/2009 00:29:36.521928: Module Online Sequence
08/20/2009 00:29:42.635136: Module Online
08/20/2009 00:33:00.259066: Deleting route to FEX
08/20/2009 00:33:00.267475: Module disconnected
08/20/2009 00:33:00.270590: Offlining Module
08/20/2009 00:33:00.271670: Module Offline Sequence
08/20/2009 00:33:00.641695: Module Offline
08/20/2009 00:36:31.556122: Module register received
08/20/2009 00:36:31.559315: Registration response sent
08/20/2009 00:36:31.584519: create module inserted event.
08/20/2009 00:36:31.585738: Module Online Sequence
08/20/2009 00:36:37.265084: Module Online
測試兩臺N5K連接N2K:
N5K-2:
switch(config)# feature lacp
switch(config)# feature vpc
switch(config)# vp domain 10
switch(config-vpc-domain)# role priority 70
Warning:
!!:: vPCs will be flapped on current primary vPC switch while attempting role change ::!!
Note:
--------:: Change will take effect after user has re-initd the vPC peer-link ::--------
switch(config-vpc-domain)# peer-keepalive destination 172.16.1.1 source 172.16.1.2 vrf management
switch(config)# int ethernet 1/17, ethernet 1/27
switch(config-if-range)# channel-group 10 mode active
switch(config-if-range)# int po 10
switch(config-if)# switchport mode trunk
switch(config-if)# vpc peer-link
Please note that spanning tree port type is changed to "network" port type on vPC peer-link.
This will enable spanning tree Bridge Assurance on vPC peer-link provided the STP Bridge Assurance
(which is enabled by default) is not disabled.
switch(config)# default interface ethernet 1/1
switch(config)# int e1/1
switch(config-if)# channel-group 20
switch(config-if)# int po 20
switch(config-if)# switchport mode trunk
switch(config-if)# vpc 10
N5K-1:
1(config-if)# vpc domain 10
1(config-vpc-domain)# peer-keepalive destination 172.16.1.2 source 172.16.1.1
1(config)# int ethernet 1/17, ethernet 1/27
1(config-if-range)# channel-group 10 mode active
1(config-vpc-domain)# int po 10
1(config-if)# vpc peer-link
Please note that spanning tree port type is changed to "network" port type on vPC peer-link.
This will enable spanning tree Bridge Assurance on vPC peer-link provided the STP Bridge Assurance
(which is enabled by default) is not disabled.
1(config-if)# int e1/1
1(config-if)# channel-group 20
1(config-if)# int po 20
1(config-if)# switchport mode trunk
1(config-if)# vpc 10
1(config-if)# end
1# sho vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 10
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary
Number of vPCs configured : 1
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 Po10 up 1
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
10 Po20 down* success success -
2(config)# sho vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 10
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 1
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 Po10 up 1
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
10 Po20 up failed Compatibility check failed 1
for port mode
2(config)# fex 100
2(config-fex)# pinning max-links 1
Change in Max-links will cause traffic disruption.
2(config-fex)# exit
2(config)# int po 20
2(config-if)# switchport mode fex-fabric
2(config-if)# fex associate 100
2(config)# sho vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 10
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : primary
Number of vPCs configured : 1
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 Po10 up 1
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
10 Po20 up success success -
2# sho fex
FEX FEX FEX FEX Fex
Number Description State Model Serial
------------------------------------------------------------------------
100 FEX0100 Online Sequence N2K-C2248TP-1GE SSI15420LK0
2# sho fex
FEX FEX FEX FEX Fex
Number Description State Model Serial
------------------------------------------------------------------------
100 FEX0100 Online Sequence N2K-C2248TP-1GE SSI15420LK0
2# sho fex
FEX FEX FEX FEX Fex
Number Description State Model Serial
------------------------------------------------------------------------
100 FEX0100 Online Sequence N2K-C2248TP-1GE SSI15420LK0
2# sho fex 2009 Aug 20 00:50:50 2 %$ VDC-1 %$ %PFMA-2-FEX_STATUS: Fex 100 is online
2009 Aug 20 00:50:50 2 %$ VDC-1 %$ %NOHMS-2-NOHMS_ENV_FEX_ONLINE: FEX-100 On-line
FEX FEX FEX FEX Fex
Number Description State Model Serial
------------------------------------------------------------------------
100 FEX0100 Online N2K-C2248TP-1GE SSI15420LK0
1# sho fex
FEX FEX FEX FEX Fex
Number Description State Model Serial
------------------------------------------------------------------------
100 FEX0100 Online N2K-C2248TP-1GE SSI15420LK0
1# sho vpc
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 10
Peer status : peer adjacency formed ok
vPC keep-alive status : peer is alive
Configuration consistency status : success
Per-vlan consistency status : success
Type-2 consistency status : success
vPC role : secondary
Number of vPCs configured : 49
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 Po10 up 1
vPC status
----------------------------------------------------------------------------
id Port Status Consistency Reason Active vlans
------ ----------- ------ ----------- -------------------------- -----------
10 Po20 up success success -
101376 Eth200/1/1 down* Not Consistency Check Not -
Applicable Performed
101377 Eth200/1/2 down* Not Consistency Check Not -
Applicable Performed
101378 Eth200/1/3 down* Not Consistency Check Not -
Applicable Performed
101379 Eth200/1/4 down* Not Consistency Check Not -
Applicable Performed
101380 Eth200/1/5 down* Not Consistency Check Not -
Applicable Performed
101381 Eth200/1/6 down* Not Consistency Check Not -
Applicable Performed
101382 Eth200/1/7 down* Not Consistency Check Not -
Applicable Performed
101383 Eth200/1/8 down* Not Consistency Check Not -
Applicable Performed
101384 Eth200/1/9 down* Not Consistency Check Not -
Applicable Performed
101385 Eth200/1/10 down* Not Consistency Check Not -
Applicable Performed
101386 Eth200/1/11 down* Not Consistency Check Not -
Applicable Performed
101387 Eth200/1/12 down* Not Consistency Check Not -
Applicable Performed
101388 Eth200/1/13 down* Not Consistency Check Not -
Applicable Performed
101389 Eth200/1/14 down* Not Consistency Check Not -
Applicable Performed
101390 Eth200/1/15 down* Not Consistency Check Not -
Applicable Performed
101391 Eth200/1/16 down* Not Consistency Check Not -
Applicable Performed
101392 Eth200/1/17 down* Not Consistency Check Not -
Applicable Performed
101393 Eth200/1/18 down* Not Consistency Check Not -
Applicable Performed
101394 Eth200/1/19 down* Not Consistency Check Not -
Applicable Performed
101395 Eth200/1/20 down* Not Consistency Check Not -
Applicable Performed
101396 Eth200/1/21 down* Not Consistency Check Not -
Applicable Performed
101397 Eth200/1/22 down* Not Consistency Check Not -
Applicable Performed
101398 Eth200/1/23 down* Not Consistency Check Not -
Applicable Performed
101399 Eth200/1/24 down* Not Consistency Check Not -
Applicable Performed
101400 Eth200/1/25 down* Not Consistency Check Not -
Applicable Performed
101401 Eth200/1/26 down* Not Consistency Check Not -
Applicable Performed
101402 Eth200/1/27 down* Not Consistency Check Not -
Applicable Performed
101403 Eth200/1/28 down* Not Consistency Check Not -
Applicable Performed
101404 Eth200/1/29 down* Not Consistency Check Not -
Applicable Performed
101405 Eth200/1/30 down* Not Consistency Check Not -
Applicable Performed
101406 Eth200/1/31 down* Not Consistency Check Not -
Applicable Performed
101407 Eth200/1/32 down* Not Consistency Check Not -
Applicable Performed
101408 Eth200/1/33 down* Not Consistency Check Not -
Applicable Performed
101409 Eth200/1/34 down* Not Consistency Check Not -
Applicable Performed
101410 Eth200/1/35 down* Not Consistency Check Not -
Applicable Performed
101411 Eth200/1/36 down* Not Consistency Check Not -
Applicable Performed
101412 Eth200/1/37 down* Not Consistency Check Not -
Applicable Performed
101413 Eth200/1/38 down* Not Consistency Check Not -
Applicable Performed
101414 Eth200/1/39 down* Not Consistency Check Not -
Applicable Performed
101415 Eth200/1/40 down* Not Consistency Check Not -
Applicable Performed
101416 Eth200/1/41 down* Not Consistency Check Not -
Applicable Performed
101417 Eth200/1/42 down* Not Consistency Check Not -
Applicable Performed
101418 Eth200/1/43 down* Not Consistency Check Not -
Applicable Performed
101419 Eth200/1/44 down* Not Consistency Check Not -
Applicable Performed
101420 Eth200/1/45 down* Not Consistency Check Not -
Applicable Performed
101421 Eth200/1/46 down* Not Consistency Ch
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