Cisco Bug: CSCuq75759 - CPT50 ring - Translate 1to1 fails with double tag on interworking vlan
Feb 08, 2017
- Cisco Carrier Packet Transport (CPT) System
Known Affected Releases
Symptom: Translate 1to1 is not working properly on egress traffic Conditions: Build-number: **************** NEPTUNE_BUILD_124 Topology: *********** SH Ring with 3 PBRs Steps to recreate: ***************** 1. Have topology as mentioned. 2. Create a Tunnel and VPWS between any 2 PBRs. make sure interworking used is none in PW_class 3. make the below configs on PW- service instances NE1: ******** sh run int gi 57/10 | s test service instance 51 ethernet test3 encapsulation dot1q 200 rewrite ingress tag translate 1-to-1 dot1q 300 symmetric xconnect 22.214.171.124 200 encapsulation mpls manual pw-class PW_TP_93_VPWS mpls label 82 28 mpls control-word mtu 1500 no remote link failure notification NE2: ***** CPT50-56#sh run int gi 56/10 | s test3 service instance 6 ethernet test3 encapsulation dot1q 100 rewrite ingress tag push dot1q 200 symmetric xconnect 126.96.36.199 200 encapsulation mpls manual pw-class PW_TP_93_VPWS mpls label 28 82 mpls control-word mtu 1500 no remote link failure notification when vlan 100 tagged packets are sent from NE2 IXIA, NE1 we recieve packets with single tagged 100, where it should be double tagged packet with outer 100 and innner 100 vlans. As per DE's analysis it is found that "ingress tag pop is performed on egress side for bot 1to1 and 2to1 translate" but it should be performed only for 2to1 translate.
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