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Diffstat (limited to 'src/vnet/srv6')
| -rw-r--r-- | src/vnet/srv6/sr_steering.md | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/vnet/srv6/sr_steering.md b/src/vnet/srv6/sr_steering.md index cf446f8171e..7e91892e0bc 100644 --- a/src/vnet/srv6/sr_steering.md +++ b/src/vnet/srv6/sr_steering.md @@ -1,5 +1,7 @@ # Steering packets into a SR Policy {#srv6_steering_doc} +## steer packets uging the sr steering policy + To steer packets in Transit into an SR policy (T.Insert, T.Encaps and T.Encaps.L2 behaviors), the user needs to create an 'sr steering policy'. sr steer l3 2001::/64 via sr policy index 1 @@ -9,3 +11,25 @@ To steer packets in Transit into an SR policy (T.Insert, T.Encaps and T.Encaps.L sr steer l2 TenGE0/1/0 via sr policy bsid cafe::1 Disclaimer: The T.Encaps.L2 will steer L2 frames into an SR Policy. Notice that creating an SR steering policy for L2 frames will actually automatically *put the interface into promiscous mode*. + +## steer packets using the classifier + +Another way to steer packet is to use the classifier. + +First the user need to manually add the source routing node to the list of the +ip6-inacl next nodes. +Using the python api this can be donne with: + + # jsonfiles = get list of json api files + vpp = VPP(jsonfiles) + vpp.add_node_next(node_name='ip6-inacl', next_name='sr-pl-rewrite-insert') + +Below is a classifier mask filtering all the packets from the interface +TenGigabitEthernet5/0/0 on ip version and moving all ipv6 packets to the +sr-pl-rewrite-insert node (dropping the others) and applying the source routing +index 2. +In essence, this means "apply this sr policy to all the packets from this interface) + + vpp# classify table miss-next 0 current-data-flag 1 mask hex f000000000000000 skip 0 + vpp# classify session acl-hit-next 1 table-index 0 match hex 6000000000000000 action set-sr-policy-index 2 + vpp# set interface input acl intfc TenGigabitEthernet5/0/0 ip6-table 0 |