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| author | Martin Varghese <martin.varghese@nokia.com> | 2021-11-29 11:52:05 +0530 |
|---|---|---|
| committer | Ilya Maximets <i.maximets@ovn.org> | 2022-01-17 02:04:20 +0100 |
| commit | 1917ace89364d366777b34467e952358d2d85b41 (patch) | |
| tree | 109d821fbb510ed2df3cf8358d496af8d2830364 /ofproto/ofproto-dpif-ipfix.c | |
| parent | 4a6a4734622e42367faf39cd3938bc8a57786282 (diff) | |
| download | openvswitch-1917ace89364d366777b34467e952358d2d85b41.tar.gz | |
Encap & Decap actions for MPLS packet type.
The encap & decap actions are extended to support MPLS packet type.
Encap & decap actions adds and removes MPLS header at start of the
packet.
The existing PUSH MPLS & POP MPLS actions inserts & removes MPLS
header between ethernet header and the IP header. Though this behaviour
is fine for L3 VPN where an IP packet is encapsulated inside a MPLS
tunnel, it does not suffice the L2 VPN requirements. In L2 VPN the
ethernet packets must be encapsulated inside MPLS tunnel.
In this change the encap & decap actions are extended to support MPLS
packet type. The encap & decap adds and removes MPLS header at the
start of packet as depicted below.
Encapsulation:
Actions - encap(mpls),encap(ethernet)
Incoming packet -> | ETH | IP | Payload |
1 Actions - encap(mpls) [Datapath action - ADD_MPLS:0x8847]
Outgoing packet -> | MPLS | ETH | Payload|
2 Actions - encap(ethernet) [ Datapath action - push_eth ]
Outgoing packet -> | ETH | MPLS | ETH | Payload|
Decapsulation:
Incoming packet -> | ETH | MPLS | ETH | IP | Payload |
Actions - decap(),decap(packet_type(ns=0,type=0))
1 Actions - decap() [Datapath action - pop_eth)
Outgoing packet -> | MPLS | ETH | IP | Payload|
2 Actions - decap(packet_type(ns=0,type=0)) [Datapath action - POP_MPLS:0x6558]
Outgoing packet -> | ETH | IP | Payload|
Signed-off-by: Martin Varghese <martin.varghese@nokia.com>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Diffstat (limited to 'ofproto/ofproto-dpif-ipfix.c')
| -rw-r--r-- | ofproto/ofproto-dpif-ipfix.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/ofproto/ofproto-dpif-ipfix.c b/ofproto/ofproto-dpif-ipfix.c index 796eb6f88..9280e008e 100644 --- a/ofproto/ofproto-dpif-ipfix.c +++ b/ofproto/ofproto-dpif-ipfix.c @@ -3018,6 +3018,7 @@ dpif_ipfix_read_actions(const struct flow *flow, case OVS_ACTION_ATTR_CHECK_PKT_LEN: case OVS_ACTION_ATTR_UNSPEC: case OVS_ACTION_ATTR_DROP: + case OVS_ACTION_ATTR_ADD_MPLS: case __OVS_ACTION_ATTR_MAX: default: break; |