OPERATIONAL DEFECT DATABASE
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#1. on egress L3 VPN PE ingress traffic from backbone/core is dropped #2. drops could be seen on ingress line card or even be silent/hidden #3. the trace message below from ingress line card is the sign of this issue RP/0/RP0/CPU0:BRU-5516B#show qos ea trace all wrapping location all | inc BNDL-ERR | inc ifh_2_npu_id_and_npu_ctx failed Sep 29 09:48:02.846 qos_ea/errors 0/0/CPU0 t3550 BNDL-ERR: (line# 3077) - ifh_2_npu_id_and_npu_ctx failed for ifh 0x40000c8 - rc: 'ixdb' detected the 'fatal' condition 'Not found in database': No such file or directory RP/0/RP0/CPU0:BRU-5516B#
#1. 7.3.2 version with fix code for CSCwc30488 activated (via SMU) #2. core/backbone/mpls interface and AC interface are located on different line cards (modular ncs5500 platform) #3. "hw-module profile qos hqos-enable" is configured #4. AC is Bundle-Ether interface/subinterface
there is no workaround if conditions are met
On ingress line card egress NHINFO shown as incomplete RP/0/RP0/CPU0:BRU-5516B#show cef vrf VRF-A 10.0.48.85 hardware egress detail location 0/0/CPU0 | b NHINFO TX-NHINFO: INCOMPLETE <<<<<<<<<<<<<<<<< PI: 0x308d247698 PD: 0x308d247720 rev:404 dpa-rev:0 Trap Port: 0x160030b2 npu_mask: 0 RP/0/RP0/CPU0:BRU-5516B# Drops could be seen on ingress line card on FIB_IPV4_GLEAN trap counter. RP/0/RP0/CPU0:BRU-5516B#show controllers npu stats traps-all instance 0 location 0/0/cpu0 | ex "0 0" Trap Type NPU Trap TrapStats Policer Packet Packet ID ID ID Accepted Dropped ============================================================================================================================ RxTrapReceive 0 169 0xa9 32019 51141 0 RxTrapUserDefine_FIB_IPV4_GLEAN 0 173 0xad 32018 46116 876997 <<<< increasing RxTrapUserDefine_RECEIVE_L2 0 180 0xb4 32019 412 0 RP/0/RP0/CPU0:BRU-5516B# Drops could be seen on ingress line card on ENQ_DISCARDED_PACKET_COUNTER or/and PQP_DSCRD_UC_PKT_CNT NPU counter RP/0/RP0/CPU0:BRU-5516B#show controllers npu stats counters-all instance 0 location 0/0/cpu0 | i ENQ_DISCARDED_PACKET_COUNTER ENQ_DISCARDED_PACKET_COUNTER = 765112 <<<<<< increasing RP/0/RP0/CPU0:BRU-5516B# RP/0/RP0/CPU0:BRU-5516B#show controllers npu stats counters-all instance 0 location 0/0/cpu0 | i PQP_DSCRD_UC_PKT_CNT PQP_DSCRD_UC_PKT_CNT = 412966 <<<<<<<<<<< increasing RP/0/RP0/CPU0:BRU-5516B#
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