---------- Forwarded message ---------
From: L. Kumar <lalitfic...@gmail.com>
Date: Tue, 2 Jul 2019, 1:14 pm
Subject: Vpp SR policy support in classfier
To: <m...@lists.fd.io>
Hi Team,
I just start learning the VPP and I want to use classifier for steering
rather than SR streer policy.
*Is classify session support SR policy in action part ?*
I have tried to used the following config:
classify table mask l3 ip6 dst
classify session acl-hit-next 1 table-index 0 match l3 ip6 dst cc::01
action set-sr-policy-index 0
classify session acl-hit-next 1 table-index 0 match l3 ip4 dst 30.30.1.1
action set-ip4-fib-id 0
packet trace:
01:08:47:949514: af-packet-input
af_packet: hw_if_index 1 next-index 4
tpacket2_hdr:
status 0x1 len 118 snaplen 118 mac 66 net 80
sec 0x5d1b0727 nsec 0xf43edf6 vlan 0 vlan_tpid 0
01:08:47:949563: ethernet-input
IP6: ca:c5:9b:3f:17:48 -> 02:fe:9e:98:48:2e
01:08:47:949577: ip6-input
ICMP6: aa::1 -> cc::1
tos 0x00, flow label 0x22a6e, hop limit 64, payload length 64
ICMP echo_request checksum 0x2ab3
01:08:47:949602: ip6-inacl
INACL: sw_if_index 1, next_index 1, table 0, offset 1200
01:08:47:949615: ip6-lookup
fib 0 dpo-idx 1 flow hash: 0x00000000 <0900000000>
ICMP6: aa::1 -> cc::1
tos 0x00, flow label 0x22a6e, hop limit 64, payload length 64
ICMP echo_request checksum 0x2ab3
01:08:47:949651: ip6-drop
ICMP6: aa::1 -> cc::1
tos 0x00, flow label 0x22a6e, hop limit 64, payload length 64
ICMP echo_request checksum 0x2ab3
01:08:47:949660: error-drop
rx:host-vpp1out
01:08:47:949676: drop
ip6-input: valid ip6 packets
DBGvpp# sh classify tables verbose
TableIdx Sessions NextTbl NextNode
0 1 -1 -1
Heap: total: 2.06M, used: 1.70K, free: 2.06M, trimmable: 2.06M
nbuckets 2, skip 2 match 2 flag 0 offset 0
mask 000000000000ffffffffffffffffffffffffffffffff00000000000000000000
linear-search buckets 0
[0]: heap offset 1200, elts 2, normal
0: [1200]: next_index 1 advance 0 opaque -1 action 3 metadata 0
k: 00000000000000cc000000000000000000000000000100000000000000000000
hits 2, last_heard 4129.09 <412909>
1 active elements
1 free lists
0 linear-search buckets
I have gone through code of *vnet_classify_add_del_session function as
well. There *I was able to see the implementation for fib table but for SR
policy we just returning the SR policy index rather than any fib entry, If
Sr policy Implementation is there will you please tell how it handle Sr
policy .
Thanks
Lalit
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