11-17-2015 04:06 AM - edited 03-10-2019 12:36 PM
Dear all
I need to create a connection link between an interface on FWSM (main and standby )on 2 core switches 6500 configured with VSS and 2 switchs 9500 configured with VPC configured between them , what is the best implementation ? i have 4 uplinks between the 9K and 6500 , each 2 links from every swich 9500 to the 2 core switches 6500 . i have 2 idea i don't know which is better :
1) configure the 4 uplinks from 2 switchs 9K as 1 portchannel with VPC configuration and from VSS 6500 port-channel ( layer 2 ) for the 4 uplink on the 2 vss core switch and the layer 3 interfaces will be on FWSM (main and standby)
2 ) configure 2 port-channels , the portchannel is configered between one 9K switch (layer 2) and the 2 VSS core 6500 and other port-channel for the other 9K switch (layer 2 )
11-23-2015 07:48 AM
it_networkteam,
You should be able to use option 1), your configurations would look something like this.
Configure your VSS Portchannel-group as you would with any LAG interface as a 802.1q trunk using LACP...one interface from each of the two VSS chassis'.
interface Port-channel1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
interface TenGigabitEthernet1/1/1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode active
interface TenGigabitEthernet2/1/1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode active
Configure your N9K the same, but add the vpc configuration to the each of the N9K switches.
N9K #1
interface port-channel1
switchport
switchport mode trunk
vpc 1
interface Ethernet1/1
switchport
switchport mode trunk
channel-group 1 mode active
no shutdown
N9K #2
interface port-channel1
switchport
switchport mode trunk
vpc 1
interface Ethernet1/1
switchport
switchport mode trunk
channel-group 1 mode active
no shutdown
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