Hello I've done some coding to support VPLS in VPP as data plane and FRR as the control plane. I'm trying to connect a cisco 7606 to a system with VPP & FRR with VPLS protocol. The VPLS tunnel is all OK between two (VPP+FRR) routers. It is also OK between two Cisco routers. The received packet from Cisco is not parsed correctly in the VPP virtual switch. The MAC address that VPP parses (as shown in the output of "show trace" command) is not the MAC address of source host. Cisco router has shifted the source MAC four bytes to the end. Maybe it is because Cisco 7606 uses a VLAN tag for VPLS packets that VPP does not accept. Has anybody established a VPLS connection between the cisco router and a VPP?
Here are our system's configuration and scenario *#Configuration Cisco 7606* version 15.1 service timestamps debug datetime msec service timestamps log datetime msec service counters max age 10 ! hostname Cisco1 ! boot-start-marker boot system sup-bootdisk:c7600rsp72043-adventerprisek9-mz.151-1.S.bin boot-end-marker ! ! ! no aaa new-model ! ! ! ip source-route ! ! ! ! ! mpls label protocol ldp ! l2 vfi cust1 manual vpn id 100 neighbor 4.4.4.4 encapsulation mpls no-split-horizon ! ! interface TenGigabitEthernet2/1 switchport ! interface TenGigabitEthernet2/2 ip address 50.1.1.2 255.255.255.0 mpls ip mpls label protocol ldp ! interface Vlan1 no ip address xconnect vfi cust1 ! interface Vlan100 no ip address ! router ospf 1 router-id 1.1.1.1 network 1.1.1.1 0.0.0.0 area 0 network 50.1.1.0 0.0.0.255 area 0 ! no ip forward-protocol nd ! no ip http server no ip http secure-server ! logging esm config ! mpls ldp router-id Loopback0 ! . … * #Show in Cisco 7606* *Cisco1#show ip route* 1.0.0.0/32 is subnetted, 1 subnets C 1.1.1.1 is directly connected, Loopback0 4.0.0.0/32 is subnetted, 1 subnets O 4.4.4.4 [110/10001] via 50.1.1.1, 02:44:24, TenGigabitEthernet2/2 50.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 50.1.1.0/24 is directly connected, TenGigabitEthernet2/2 L 50.1.1.2/32 is directly connected, TenGigabitEthernet2/2 100.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 100.1.2.0/24 is directly connected, TenGigabitEthernet4/1 L 100.1.2.1/32 is directly connected, TenGigabitEthernet4/1 200.200.1.0/24 is variably subnetted, 2 subnets, 2 masks C 200.200.1.0/24 is directly connected, GigabitEthernet6/2 L 200.200.1.1/32 is directly connected, GigabitEthernet6/2 *Cisco1#show mpls ldp neighbor* Peer LDP Ident: 4.4.4.4:0; Local LDP Ident 1.1.1.1:0 TCP connection: 4.4.4.4.42741 - 1.1.1.1.646 State: Oper; Msgs sent/rcvd: 201/174; Downstream Up time: 02:45:06 LDP discovery sources: TenGigabitEthernet2/2, Src IP addr: 50.1.1.1 Targeted Hello 1.1.1.1 -> 4.4.4.4, active, passive *Cisco1#show mpls forwarding-table* Local Outgoing Prefix Bytes Label Outgoing Next Hop Label Label or Tunnel Id Switched interface 16 Pop Label 4.4.4.4/32 0 Te2/2 50.1.1.1 17 No Label l2ckt(4116) 90664 none point2poin *Cisco1#show vfi* Legend: RT=Route-target, S=Split-horizon, Y=Yes, N=No VFI name: cust1, state: up, type: multipoint VPN ID: 100 Local attachment circuits: Vlan1 Neighbors connected via pseudowires: Peer Address VC ID S 4.4.4.4 100 N *Cisco1#show mpls l2transport vc* Local intf Local circuit Dest address VC ID Status ------------- -------------------------- --------------- ---------- ---------- VFI cust1 VFI 4.4.4.4 100 UP *Cisco1#show mpls l2transport binding* Destination Address: 4.4.4.4, VC ID: 100 Local Label: 17 Cbit: 1, VC Type: Ethernet, GroupID: 0 MTU: 1500, Interface Desc: n/a VCCV: CC Type: RA [2], TTL [3] CV Type: LSPV [2], BFD [3] Remote Label: 17 Cbit: 1, VC Type: Ethernet, GroupID: 0 MTU: 1500, Interface Desc: n/a VCCV: CC Type: None CV Type: None *#configuration VPP + FRR* interface TenGeA1 ip address 50.1.1.1/24 ! interface lo1 ip address 4.4.4.4/32 ! router ospf ospf router-id 4.4.4.4 network 4.4.4.4/32 area 0 network 50.1.1.0/24 area 0 ! mpls ldp router-id 4.4.4.4 ! address-family ipv4 discovery transport-address 4.4.4.4 ! interface TenGeA1 ! exit-address-family ! ! l2vpn cust1 type vpls bridge bridge3 bridge TenGeA2 ! member pseudowire mpw3 neighbor lsr-id 1.1.1.1 pw-id 100 ! ! *#show vpp+FRR* *VPP-FRR# show ip route* O>* 1.1.1.1/32 [110/10001] via 50.1.1.2, TenGeA1, label implicit-null, 02:47:04 O 4.4.4.4/32 [110/10000] via 0.0.0.0, lo1 onlink, 03:05:30 C>* 4.4.4.4/32 is directly connected, lo1, 03:08:45 O 50.1.1.0/24 [110/10000] is directly connected, TenGeA1, 03:05:21 C>* 50.1.1.0/24 is directly connected, TenGeA1, 03:08:45 *VPP-FRR# show mpls ldp neighbor* AF ID State Remote Address Uptime ipv4 1.1.1.1 OPERATIONAL 1.1.1.1 02:47:52 *VPP-FRR# show mpls table* Inbound Outbound Label Type Nexthop Label -------- ------- --------------- -------- 18 LDP 50.1.1.2 implicit-null VPP-FRR# show l2vpn atom binding Destination Address: 1.1.1.1, VC ID: 100 Local Label: 17 Cbit: 1, VC Type: Ethernet, GroupID: 0 MTU: 1500 Remote Label: 17 Cbit: 1, VC Type: Ethernet, GroupID: 0 MTU: 1500 *VPP-FRR# show l2vpn atom vc* Interface Peer ID VC ID Name Status --------- --------------- ---------- ---------------- ---------- mpw3 1.1.1.1 100 cust1 UP #show Trace in (VPP+FRR) Packet 2 00:49:31:380020: dpdk-input TenGigabitEthernet1/0/0 rx queue 0 buffer 0x8d6b: current data 14, length 68, free-list 0, clone-count 0, totlen-nifb 0, trace 0x1 ext-hdr-valid l4-cksum-computed l4-cksum-correct l2-hdr-offset 0 PKT MBUF: port 0, nb_segs 1, pkt_len 82 buf_len 2176, data_len 82, ol_flags 0x180, data_off 128, phys_addr 0xd9e35b40 packet_type 0x1 l2_len 0 l3_len 0 outer_l2_len 0 outer_l3_len 0 rss 0x0 fdir.hi 0x0 fdir.lo 0x0 Packet Offload Flags PKT_RX_IP_CKSUM_GOOD (0x0080) IP cksum of RX pkt. is valid PKT_RX_L4_CKSUM_GOOD (0x0100) L4 cksum of RX pkt. is valid Packet Types RTE_PTYPE_L2_ETHER (0x0001) Ethernet packet MPLS: 6c:41:6a:26:81:00 -> 00:10:f3:2e:29:0e label 17 exp 0, s 1, ttl 254 00:49:31:380032: mpls-input MPLS: next mpls-lookup[1] label 17 ttl 254 exp 0 00:49:31:380038: mpls-lookup MPLS: next [7], lookup fib index 0, LB index 32 hash 0 label 17 eos 1 00:49:31:380041: interface-rx-dpo-l2 sw_if_index:12 00:49:31:380043: l2-input RTE_PTYPE_L2_ETHER (0x0001) Ethernet packet MPLS: 6c:41:6a:26:81:00 -> 00:10:f3:2e:29:0e label 17 exp 0, s 1, ttl 254 00:49:31:380032: mpls-input MPLS: next mpls-lookup[1] label 17 ttl 254 exp 0 00:49:31:380038: mpls-lookup MPLS: next [7], lookup fib index 0, LB index 32 hash 0 label 17 eos 1 00:49:31:380041: interface-rx-dpo-l2 sw_if_index:12 00:49:31:380043: l2-input l2-input: sw_if_index 12 dst 00:00:00:00: ff:ff src ff:ff:ff:ff : 00:10 00:49:31:380046: l2-learn l2-learn: sw_if_index 12 dst 00:00:00:00: ff:ff src ff:ff:ff:ff : 00:10 bd_index 1 00:49:31:380049: l2-fwd l2-fwd: sw_if_index 12 dst 00:00:00:00: ff:ff src ff:ff:ff:ff : 00:10 bd_index 1 00:49:31:380051: l2-flood l2-flood: sw_if_index 12 dst 00:00:00:00: ff:ff src ff:ff:ff:ff : 00:10 bd_index 1 00:49:31:380054: l2-output l2-output: sw_if_index 2 dst 00:00:00:00: ff:ff src ff:ff:ff:ff : 00:10 data f3 3d af 80 08 06 00 01 08 00 06 04 00:49:31:380057: TenGigabitEthernet1/0/1-output TenGigabitEthernet1/0/1 0xf33d: ff:ff:ff:ff:00:10 -> 00:00:00:00:ff:ff 00:49:31:380063: TenGigabitEthernet1/0/1-tx TenGigabitEthernet1/0/1 tx queue 0 buffer 0x8d6b: current data 18, length 64, free-list 0, clone-count 0, totlen-nifb 0, trace 0x1 ext-hdr-valid l4-cksum-computed l4-cksum-correct l2-hdr-offset 0 PKT MBUF: port 0, nb_segs 1, pkt_len 64 buf_len 2176, data_len 64, ol_flags 0x180, data_off 146, phys_addr 0xd9e35b40 packet_type 0x1 l2_len 0 l3_len 0 outer_l2_len 0 outer_l3_len 0 rss 0x0 fdir.hi 0x0 fdir.lo 0x0 Packet Offload Flags PKT_RX_IP_CKSUM_GOOD (0x0080) IP cksum of RX pkt. is valid PKT_RX_L4_CKSUM_GOOD (0x0100) L4 cksum of RX pkt. is valid Packet Types RTE_PTYPE_L2_ETHER (0x0001) Ethernet packet 0xf33d: ff:ff:ff:ff:00:10 -> 00:00:00:00:ff:ff
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