Hello All,
I've been playing around with VPP and have a question about VRFs created in
linux and how they are supposed to appear within the VPP fib when one has
the Linux CP/NL plugins enabled. I saw the following post here
https://lists.fd.io/g/vpp-dev/topic/89678481#21001 which seemed a little
conflicting on the responses so I just wanted to get a bit of clarification
on the expected behavior. Here are the commands that I'm inputting:
vppctl commands:
create interface vmxnet3 0000:0b:00.0 bind
lcp create vmxnet3-0/b/0/0 host-if ge0
linux commands:
sudo ip link set ge0 up
sudo ip link add vrf-blue type vrf table 10
sudo ip link set dev vrf-blue up
sudo ip link set dev ge0 master vrf-blue
sudo ip addr add 192.168.1.1/24 dev ge0
>From the linux side all is well. When I go into vppctl I see table 10 but
192.168.1.1/24 is not in table 10. Below if the output from show ip fib.
Is this the expected behavior or should 192.168.1.1/24 be in the table 10
fib?
vpp# show ver
vpp v22.10.0-3~gb89dcf824 built by root on ubuntu20 at 2023-01-11T16:05:42
vpp# show ip fib
ipv4-VRF:0, fib_index:0, flow hash:[src dst sport dport proto flowlabel ]
epoch:0 flags:none locks:[default-route:1, ]
0.0.0.0/0
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:1 buckets:1 uRPF:0 to:[0:0]]
[0] [@0]: dpo-drop ip4
0.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:2 buckets:1 uRPF:1 to:[0:0]]
[0] [@0]: dpo-drop ip4
192.168.1.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:15 buckets:1 uRPF:14 to:[0:0]]
[0] [@0]: dpo-drop ip4
192.168.1.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:14 buckets:1 uRPF:13 to:[0:0]]
[0] [@4]: ipv4-glean: [src:192.168.1.0/24] vmxnet3-0/b/0/0: mtu:9000
next:1 flags:[] ffffffffffff00505694bf900806
192.168.1.1/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:17 buckets:1 uRPF:18 to:[0:0]]
[0] [@13]: dpo-receive: 192.168.1.1 on vmxnet3-0/b/0/0
192.168.1.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:16 buckets:1 uRPF:16 to:[0:0]]
[0] [@0]: dpo-drop ip4
224.0.0.0/4
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:4 buckets:1 uRPF:3 to:[0:0]]
[0] [@0]: dpo-drop ip4
240.0.0.0/4
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:3 buckets:1 uRPF:2 to:[0:0]]
[0] [@0]: dpo-drop ip4
255.255.255.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:5 buckets:1 uRPF:4 to:[0:0]]
[0] [@0]: dpo-drop ip4
ipv4-VRF:10, fib_index:1, flow hash:[src dst sport dport proto flowlabel ]
epoch:0 flags:none locks:[lcp-rt:1, ]
0.0.0.0/0
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:18 buckets:1 uRPF:17 to:[0:0]]
[0] [@0]: dpo-drop ip4
0.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:19 buckets:1 uRPF:19 to:[0:0]]
[0] [@0]: dpo-drop ip4
224.0.0.0/4
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:21 buckets:1 uRPF:21 to:[0:0]]
[0] [@0]: dpo-drop ip4
240.0.0.0/4
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:20 buckets:1 uRPF:20 to:[0:0]]
[0] [@0]: dpo-drop ip4
255.255.255.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:22 buckets:1 uRPF:23 to:[0:0]]
[0] [@13]: dpo-receive: 0.0.0.0 on local0
vpp#
Thanks,
Brian
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