Configuring Port-Channel and VLAN in Cisco Nexus

Objective: To configure port-channel and associate it to vlan.

Servers will use Cisco-NXOS as their gateway and uplink to Internet. Server-switch have Layer 2 (access mode) connectivity to Cisco-NXOS router. (see Fig.1)

 Fig.1

1. Configure the Vlan (interface vlan will be the server's gateway)

Cisco-NXOS#

configure

vlan 8

  name Server-Farm

interface Vlan8

  description Server Farm Vlan

  no shutdown

  ip address 192.168.8.1/24

2. Configure port-channel

 interface port-channel10

   description Port-channel to Server-Switch

   switchport access vlan 8

3. Configure physical members

 interface eth1/1

 description Connection to Server-Switch fa0/1

 switchport access vlan 8

 channel-group 10 mode active

 no shutdown

interface eth1/2

 description Connection to Server-Switch fa2/0

 switchport access vlan 8

 channel-group 10 mode active

 no shutdown

Verification and sample output:

Server1 = 192.168.8.20

Server2 = 192.16 8.8.21

ARP:

Cisco-NXOS# show ip arp vlan8

Flags: * - Adjacencies learnt on non-active FHRP router

       + - Adjacencies synced via CFSoE

       # - Adjacencies Throttled for Glean

       CP - Added via L2RIB, Control plane Adjacencies

       PS - Added via L2RIB, Peer Sync

       RO - Re-Originated Peer Sync Entry

       D - Static Adjacencies attached to down interface

IP ARP Table

Total number of entries: 2

Address         Age       MAC Address     Interface       Flags

192.168.8.20 00:15:47  0011.abcd.ef00  Vlan8

192.168.8.21 00:15:47  0011.abcd.ef01  Vlan8

Ping:

Cisco-NXOS# ping 192.168.8.20 source 192.168.8.1

PING 192.168.8.20 (192.168.8.20) from 192.168.8.1: 56 data bytes

64 bytes from 192.168.8.20: icmp_seq=0 ttl=63 time=0.62 ms

64 bytes from 192.168.8.20: icmp_seq=1 ttl=63 time=0.441 ms

64 bytes from 192.168.8.20: icmp_seq=2 ttl=63 time=0.454 ms

64 bytes from 192.168.8.20: icmp_seq=3 ttl=63 time=0.54 ms

64 bytes from 192.168.8.20: icmp_seq=4 ttl=63 time=0.394 ms

--- 192.168.8.20 ping statistics ---

5 packets transmitted, 5 packets received, 0.00% packet loss

round-trip min/avg/max = 0.394/0.489/0.62 ms

Check Port-channel:

Cisco-NXOS# show int port-channel 10 | i Members

  Members in this channel: Eth1/1, Eth1/2

Check Vlan:

Cisco-NXOS# show vlan

8  Server-Farm                    active    Po10

Verify the traffic:

show int port-channel1

show int vlan8

show int eth1/1

show int eth1/2

Here's the Juniper version for this -->  Configuring Port-Channel and VLAN in Juniper