Two Nexus 5020 vPC etherchannel with Two Catalyst 6500 VSS
Hi,
we are fighting with an 40 Gbps etherchannel between 2 Nx 5000 and 2 Catalyst 6500 but the etherchannel never comes up. Here is the config:
NK5-1
interface port-channel30
description Trunk hacia VSS 6500
switchport mode trunk
vpc 30
switchport trunk allowed vlan 50-54
speed 10000
interface Ethernet1/3
switchport mode trunk
switchport trunk allowed vlan 50-54
beacon
channel-group 30
interface Ethernet1/4
switchport mode trunk
switchport trunk allowed vlan 50-54
channel-group 30
NK5-2
interface port-channel30
description Trunk hacia VSS 6500
switchport mode trunk
vpc 30
switchport trunk allowed vlan 50-54
speed 10000
interface Ethernet1/3
switchport mode trunk
switchport trunk allowed vlan 50-54
beacon
channel-group 30
interface Ethernet1/4
switchport mode trunk
switchport trunk allowed vlan 50-54
beacon
channel-group 30
Catalyst 6500 VSS
interface Port-channel30
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
interface TenGigabitEthernet2/1/2
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
channel-protocol lacp
channel-group 30 mode passive
interface TenGigabitEthernet2/1/3
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
channel-protocol lacp
channel-group 30 mode passive
interface TenGigabitEthernet1/1/2
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
channel-protocol lacp
channel-group 30 mode passive
interface TenGigabitEthernet1/1/3
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
channel-protocol lacp
channel-group 30 mode passive
The "Show vpc 30" is as follows
N5K-2# sh vpc 30
vPC status
id Port Status Consistency Reason Active vlans
30 Po30 down* success success -
But the "Show vpc Consistency-parameters vpc 30" is
N5K-2# sh vpc consistency-parameters vpc 30
Legend:
Type 1 : vPC will be suspended in case of mismatch
Name Type Local Value Peer Value
Shut Lan 1 No No
STP Port Type 1 Default Default
STP Port Guard 1 None None
STP MST Simulate PVST 1 Default Default
mode 1 on -
Speed 1 10 Gb/s -
Duplex 1 full -
Port Mode 1 trunk -
Native Vlan 1 1 -
MTU 1 1500 -
Allowed VLANs - 50-54 50-54
Local suspended VLANs - - -
We will apreciate any advice,
Thank you very much for your time...
Jose
Hi Lucien,
here is the "show vpc brief"
N5K-2# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 5
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 : 2
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
vPC Peer-link status
id Port Status Active vlans
1 Po5 up 50-54
vPC status
id Port Status Consistency Reason Active vlans
30 Po30 down* success success -
31 Po31 down* failed Consistency Check Not -
Performed
*************************************************************************+
*************************************************************************+
N5K-1# sh vpc brief
Legend:
(*) - local vPC is down, forwarding via vPC peer-link
vPC domain id : 5
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 : 2
Peer Gateway : Disabled
Dual-active excluded VLANs : -
Graceful Consistency Check : Enabled
vPC Peer-link status
id Port Status Active vlans
1 Po5 up 50-54
vPC status
id Port Status Consistency Reason Active vlans
30 Po30 down* failed Consistency Check Not -
Performed
31 Po31 down* failed Consistency Check Not -
Performed
I have changed the lacp on both devices to active:
On Nexus N5K-1/-2
interface Ethernet1/3
switchport mode trunk
switchport trunk allowed vlan 50-54
channel-group 30 mode active
interface Ethernet1/4
switchport mode trunk
switchport trunk allowed vlan 50-54
channel-group 30 mode active
On Catalyst 6500
interface TenGigabitEthernet2/1/2-3
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
switchport mode trunk
channel-protocol lacp
channel-group 30 mode active
interface TenGigabitEthernet1/1/2-3
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 50-54
switchport mode trunk
channel-protocol lacp
channel-group 30 mode active
Thanks for your time.
Jose
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Create multiple user accounts
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Mac OS X users
Learn how to set up other user accounts.
OS X Mountain Lion v10.8
OS X Lion v10.7
Mac OS X v10.6 Snow Leopard
Windows users
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How to use multiple iPhone, iPad, or iPod devices with one computer
https://support.apple.com/kb/HT1495
iTunes: How to share music between different user accounts on a single computer
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TACSWN01
TACSWN02
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swithport mode trunk
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switchport mode trunk
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swithport mode trunk
vpc 52
spannig-tree port type edge trunk
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description Cat6506-01
switchport mode trunk
channel-group 61 mode active
!--- Associate interfaces to Po61 connected to Cat6506-01
Int port-channel 61
switchport mode trunk
vpc 61
!--- Associates vPC 61 to Po61
Int ethernet 1/4-6
description Cat6506-02
switchport mode trunk
channel-group 62 mode active
!--- Associate interfaces to Po62 connected to Cat6506-02
Int port-channel 62
switchport mode trunk
vpc 62
!--- Associates vPC 62 to Po62
vPC Verification
show vpc consistency-parameters
!--- show compatibility parameters
Show feature
!--- Use it to verify that vpc and lacp features are enabled.
show vpc brief
!--- Displays information about vPC Domain
Etherchannel configuration on TAC 6500s
TACSWC01
TACSWC02
interface range GigabitEthernet2/38 - 43
description TACSWN01 (Po61 vPC61)
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
no ip address
channel-group 61 mode active
interface range GigabitEthernet2/38 - 43
description TACSWN02 (Po62 vPC62)
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
no ip address
channel-group 62 mode activeihernandez81,
Between the c1-r1 & c1-r2 there are no L2 links, ditto with d6-s1 & d6-s2. We did have a routed link just to allow orphan traffic.
All the c1r1 & c1-r2 HSRP communications ( we use GLBP as well ) go from c1-r1 to c1-r2 via the hosp-n5k-s1 & hosp-n5k-s2. Port channels 203 & 204 carry the exact same vlans.
The same is the case on the d6-s1 & d6-s2 sides except we converted them to a VSS cluster so we only have po203 with 4 *10 Gb links going to the 5Ks ( 2 from each VSS member to each 5K).
As you can tell what we were doing was extending VM vlans between 2 data centers prior to arrivals of 7010s and UCS chassis - which worked quite well.
If you got on any 5K you would see 2 port channels - 203 & 204 - going to each 6500, again when one pair went to VSS po204 went away.
I know, I know they are not the same things .... but if you view the 5Ks like a 3750 stack .... how would you hook up a 3750 stack from 2 6500s and if you did why would you run an L2 link between the 6500s ?
For us using 4 10G ports between 6509s took ports that were too expensive - we had 6704s - so use the 5Ks.
Our blocking link was on one of the links between site1 & site2. If we did not have wan connectivty there would have been no blocking or loops.
Caution .... if you go with 7Ks beware of the inability to do L2/L3 via VPCs.
better ?
one of the nice things about working with some of this stuff is as long as you maintain l2 connectivity if you are migrating things they tend to work, unless they really break
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