Recently deployed an Arista switch. As L3 Routing was configured on this switch, it was not possible to set the OOB network as the default route.
To solve this problem, we created a VRF to isolate the OOB network.
Configuration Steps
First, we define a new VRF and rd
vrf definition OOB
rd 10:1
Next, we configure the MGMT interface
interface Management1
vrf forwarding OOB
ip address 10.39.0.2/24
Set a static route and enable the routing feature of VRF
ip route vrf OOB 0.0.0.0/0 10.39.0.1
ip routing vrf OOB
Then, show ip route vrf OOB can be entered to view the configured routes
arista#show ip route vrf OOB
VRF name: OOB
Codes: C - connected, S - static, K - kernel,
O - OSPF, IA - OSPF inter area, E1 - OSPF external type 1,
E2 - OSPF external type 2, N1 - OSPF NSSA external type 1,
N2 - OSPF NSSA external type2, B I - iBGP, B E - eBGP,
R - RIP, I L1 - ISIS level 1, I L2 - ISIS level 2,
O3 - OSPFv3, A B - BGP Aggregate, A O - OSPF Summary,
NG - Nexthop Group Static Route, V - VXLAN Control Service
Gateway of last resort:
S 0.0.0.0/0 [1/0] via 10.39.0.1, Management1
C 10.39.0.0/24 is directly connected, Management1
Testing
Use ping vrf OOB ip 1.1.1.1 to test connectivity
arista#ping vrf OOB ip 1.1.1.1
PING 1.1.1.1 (1.1.1.1) 72(100) bytes of data.
80 bytes from 1.1.1.1: icmp_seq=1 ttl=59 time=0.623 ms
80 bytes from 1.1.1.1: icmp_seq=2 ttl=59 time=0.417 ms
80 bytes from 1.1.1.1: icmp_seq=3 ttl=59 time=0.419 ms
80 bytes from 1.1.1.1: icmp_seq=4 ttl=59 time=0.460 ms
80 bytes from 1.1.1.1: icmp_seq=5 ttl=59 time=0.460 ms
--- 1.1.1.1 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4ms
rtt min/avg/max/mdev = 0.417/0.475/0.623/0.080 ms, ipg/ewma 1.004/0.548 ms