Dear all,
We have a serious problem related to CPU 7609 router that affects on bussiness. CPU utilization is always approximate ~ 90%.
we do troubleshooting with Debug netdr capture and show netdr capture we see many dump messages with different IP src and IP dst as following:
------- dump of incoming inband packet -------
interface NULL, routine mistral_process_rx_packet_inlin, timestamp 17:09:20.208
dbus info: src_vlan 0x403(1027), src_indx 0x1C3(451), len 0x52(82)
bpdu 0, index_dir 0, flood 0, dont_lrn 0, dest_indx 0x380(896)
92020C01 04030400 01C30000 52000000 00060448 28000040 00000000 03800000
mistral hdr: req_token 0x0(0), src_index 0x1C3(451), rx_offset 0x76(118)
requeue 0, obl_pkt 0, vlan 0x403(1027)
destmac 00.1C.0F.5E.E0.80, srcmac 00.00.00.00.00.00, protocol 0800
protocol ip: version 0x04, hlen 0x05, tos 0x48, totlen 64, identifier 54542
df 1, mf 0, fo 0, ttl 64, src 10.164.224.158, dst 173.194.72.101
tcp src 56964, dst 443, seq 2669801125, ack 0, win 65535 off 11 checksum 0xB005 syn
------- dump of outgoing inband packet -------
interface Te8/1, routine draco2_fastsend, timestamp 17:09:20.208
dbus info: src_vlan 0x42E(1070), src_indx 0x1C3(451), len 0x52(82)
bpdu 0, index_dir 0, flood 0, dont_lrn 0, dest_indx 0x380(896)
02020000 042E2800 01C30000 52000000 00060448 20000000 00000000 03800000
mistral hdr: req_token 0x0(0), src_index 0x1C3(451), rx_offset 0x76(118)
requeue 0, obl_pkt 0, vlan 0x403(1027)
destmac 2C.21.72.AE.58.53, srcmac 00.1C.0F.5E.E0.80, protocol 0800
protocol ip: version 0x04, hlen 0x05, tos 0x48, totlen 64, identifier 54542
df 1, mf 0, fo 0, ttl 63, src 10.164.224.158, dst 173.194.72.101
tcp src 56964, dst 443, seq 2669801125, ack 0, win 65535 off 11 checksum 0xB027 syn
I don't understand where have a srcmac 00.00.00.00.00.00, and how does it affect on my CPU router?
Please suggest me how to solve this issue?
Tks,
Dzung
