You need to add them both in the same command
DBGvpp# ip mroute add 1.1.1.1 239.1.1.1 via loop0 Accept Forward
DBGvpp# sh ip mfib 1.1.1.1 239.1.1.1
ipv4-VRF:0, fib_index:0 flags:none
(1.1.1.1, 239.1.1.1/32):
fib:0 index:8 locks:1
src:CLI flags:none locks:1:
path-list:[13] locks:2 flags:no-uRPF, uRPF-list: None
path:[13] pl-index:13 ip4 weight=1 pref=0 attached:
loop0
Extensions:
path:13 flags:Accept,Forward,
Interface-Forwarding:
loop0: Accept,Forward, <<<<<
Interfaces:
loop0: Accept,Forward,
multicast-ip4-chain
[@0]: dpo-drop ip4
DBGvpp#
/neale
From: arunmitta...@gmail.com <arunmitta...@gmail.com>
Date: Wednesday, 20 April 2022 at 05:47
To: Neale Ranns <ne...@graphiant.com>
Subject: Private: Re: [vpp-dev] Queries regarding mfib and multicast support in
VPP
Thanks Neale,
I think this information will help me a lot to understand multicast forwarding
in VPP.
I am using "ip mroute add 1.1.1.1 239.1.1.1 via Eth0/2 Accept" to configure a
mroute from VPP CLI. I have observed that, I can configure the interface as
FORWARD or ACCEPT for the given S, G entry but not both.
With you input, I understand that we can configure an interface with both
FORWARD as well as ACCEPT attributes. Am I missing something or still there is
some gap in my understanding ?
================================
root@cnfp:/# cnfp-dbg vpp ip mroute add 1.1.1.1 239.1.1.1 via
TenGigabitEthernet3/0/1.205 Accept
root@cnfp:/# cnfp-dbg vpp show ip mfib
ipv4-VRF:0, fib_index:0 flags:none
(*, 0.0.0.0/0): flags:Drop,
Interfaces:
multicast-ip4-chain
[@0]: dpo-drop ip4
(*, 224.0.0.1/32):
Interfaces:
multicast-ip4-chain
[@2]: dpo-replicate: [index:0 buckets:1 flags:[has-local ] to:[0:0]]
[0] [@1]: dpo-receive
(*, 224.0.0.2/32):
Interfaces:
multicast-ip4-chain
[@2]: dpo-replicate: [index:1 buckets:1 flags:[has-local ] to:[0:0]]
[0] [@1]: dpo-receive
(1.1.1.1, 239.1.1.1/32):
Interfaces:
TenGigabitEthernet3/0/1.205: Accept,
multicast-ip4-chain
[@0]: dpo-drop ip4
root@cnfp:/# cnfp-dbg vpp ip mroute add 1.1.1.1 239.1.1.1 via
TenGigabitEthernet3/0/1.205 Forward
root@cnfp:/# cnfp-dbg vpp show ip mfib
ipv4-VRF:0, fib_index:0 flags:none
(*, 0.0.0.0/0): flags:Drop,
Interfaces:
multicast-ip4-chain
[@0]: dpo-drop ip4
(*, 224.0.0.1/32):
Interfaces:
multicast-ip4-chain
[@2]: dpo-replicate: [index:0 buckets:1 flags:[has-local ] to:[0:0]]
[0] [@1]: dpo-receive
(*, 224.0.0.2/32):
Interfaces:
multicast-ip4-chain
[@2]: dpo-replicate: [index:1 buckets:1 flags:[has-local ] to:[0:0]]
[0] [@1]: dpo-receive
(1.1.1.1, 239.1.1.1/32):
Interfaces:
TenGigabitEthernet3/0/1.205: Forward,
multicast-ip4-chain
[@2]: dpo-replicate: [index:6 buckets:1 flags:[none] to:[0:0]]
[0] [@2]: ipv4-mcast: TenGigabitEthernet3/0/1.205: mtu:9000 next:4
01005e0000003cecef457f4b810000640800
================================
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#21273): https://lists.fd.io/g/vpp-dev/message/21273
Mute This Topic: https://lists.fd.io/mt/90579491/21656
Group Owner: vpp-dev+ow...@lists.fd.io
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
