PE1 (1.0.1.1)---P1---PCE(1.0.1.99) PCE peer flaps alot, show pce ipv4 shows shows it comes up for a second and goes down. Below logs shows same. BGP peers are up and stable.
1 - Also PCE connection towards other PEs is stable on 1 peer flaps. I searched on internet but couldnot find what troubleshooting steps can be checked if IGP/BGP peers are stable and pce peer flap. Can someone suggest generally from below logs what might b causing issue and what tshoot steps i can check/?
2- Also, if it shows state TCP pending that what can be the reason n tshoot steps (again IGP/BGP peers shows UP)
RP/0/0/CPU0:Dec 16 19:36:09.503 : pce_server[1117]: %OS-PCE-5-PEER_STATE_CHANGE : PCEP Peer 1.0.1.1 state changed from Down to Up
RP/0/0/CPU0:Dec 16 19:36:09.633 : pce_server[1117]: %OS-PCE-5-PEER_STATE_CHANGE : PCEP Peer 1.0.1.1 state changed from Up to Down
RP/0/0/CPU0:Dec 16 19:36:10.573 : pce_server[1117]: %OS-PCE-5-PEER_STATE_CHANGE : PCEP Peer 1.0.1.1 state changed from Down to Up
RP/0/0/CPU0:Dec 16 19:36:10.703 : pce_server[1117]: %OS-PCE-5-PEER_STATE_CHANGE : PCEP Peer 1.0.1.1 state changed from Up to Down
RP/0/0/CPU0:Dec 16 19:36:11.643 : pce_server[1117]: %OS-PCE-5-PEER_STATE_CHANGE : PCEP Peer 1.0.1.1 state changed from Down to Up
RP/0/0/CPU0:Dec 16 19:36:11.763 : pce_server[1117]: %OS-PCE-5-PEER_STATE_CHANGE : PCEP Peer 1.0.1.1 state changed from Up to Down
RP/0/0/CPU0:Dec 16 21:04:40.909 : pce_server[1117]: DBG-PCEP:pce_tx_msg:842 Sending Open to 1.0.1.1.
RP/0/0/CPU0:Dec 16 21:04:40.909 : pce_server[1117]: DBG-PCEP:pce_read_msg:1636 Received OPEN message from 1.0.1.1
RP/0/0/CPU0:Dec 16 21:04:40.909 : pce_server[1117]: DBG-PCEP:pce_process_open_msg:2150 Process OPEN message from 1.0.1.1, ka = 30 dead = 120
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: DBG-PCEP:pce_set_peer_state:161 pce_set_peer_state: Peer 1.0.1.1 state changed from Keep Wait to Up
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: %OS-PCE-5-PEER_STATE_CHANGE : PCEP Peer 1.0.1.1 state changed from Down to Up
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: DBG-PCEP:pce_process_keepalive_msg:1939 Peer 1.0.1.1 transitioning to PCE_STATE_PCEP_OPEN state, next sid 1
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: DBG-PCEP:pce_process_keepalive_msg:1944 In case of stateless PCEP, delete all LSPs
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: DBG-PCEP:pce_process_report_msg:4494 PCReport received from 1.0.1.1: length: 152
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: DBG-PCEP:pce_process_report_msg:4539 obj_class = 33 obj_type = 1 obj_len = 20 rem_len = 148
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: DBG-PCEP:pce_parse_srp_obj:2658 pce_parse_srp_obj: R_flag: 0, SRP-ID: 0
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: DBG-PCEP:pce_process_rp_object_tlv:5148 request has an Path-setup-type TLV Path-setup-type value: Segment-routing
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: DBG-PCEP:pce_process_report_msg:4907 SRP object received
RP/0/0/CPU0:Dec 16 21:04:41.989 : pce_server[1117]: DBG-PCEP:pce_process_report_msg:4539 obj_class = 32 obj_type = 1 obj_len = 52 rem_len = 128
RP/0/0/CPU0:Dec 16 21:04:43.189 : pce_server[1117]: DBG-PCEP:pce_tcp_close:734 Closed TCP connection, clean up peer 1.0.1.1 (static peer no)
RP/0/0/CPU0:Dec 16 21:04:43.189 : pce_server[1117]: DBG-PCEP:pce_set_peer_state:161 pce_set_peer_state: Peer 1.0.1.1 state changed from Up to Idle
RP/0/0/CPU0:Dec 16 21:04:43.189 : pce_server[1117]: %OS-PCE-5-PEER_STATE_CHANGE : PCEP Peer 1.0.1.1 state changed from Up to Down
RP/0/0/CPU0:Dec 16 21:04:43.189 : pce_server[1117]: DBG-PCEP:pce_tcp_close:757 Destroying peer 1.0.1.1
RP/0/0/CPU0:Dec 16 21:04:43.189 : pce_server[1117]: DBG-PCEP:pce_delete_all_non_sync_tun:1260 Peer 1.0.1.1 was not found
RP/0/0/CPU0:Dec 16 21:04:44.159 : pce_server[1117]: DBG-PCEP:pce_create_peer_entry:314 Creating peer entry, from 1.0.1.1 --> 1.0.1.99
RP/0/0/CPU0:Dec 16 21:04:44.159 : pce_server[1117]: DBG-PCEP:pce_set_peer_state:161 pce_set_peer_state: Peer 1.0.1.1 state changed from Closed to Idle
RP/0/0/CPU0:Dec 16 21:04:44.159 : pce_server[1117]: DBG-PCEP:pce_create_peer_entry:407 Created peer entry, from 1.0.1.99 --> 1.0.1.1
RP/0/0/CPU0:Dec 16 21:04:44.159 : pce_server[1117]: DBG-PCEP:pce_set_peer_state:161 pce_set_peer_state: Peer 1.0.1.1 state changed from Idle to Keep Wait
RP/0/0/CPU0:Dec 16 21:04:44.159 : pce_server[1117]: DBG-PCEP:tcp_process_passive_open:1328 Incoming TCP session from 1.0.1.1 to 1.0.1.99 is accepted
RP/0/0/CPU0:Dec 16 21:04:45.269 : pce_server[1117]: DBG-PCEP:pce_create_peer_entry:314 Creating peer entry, from 1.0.1.1 --> 1.0.1.99
RP/0/0/CPU0:Dec 16 21:04:45.269 : pce_server[1117]: DBG-PCEP:pce_set_peer_state:161 pce_set_peer_state: Peer 1.0.1.1 state changed from Closed to Idle
RP/0/0/CPU0:Dec 16 21:04:45.269 : pce_server[1117]: DBG-PCEP:pce_create_peer_entry:407 Created peer entry, from 1.0.1.99 --> 1.0.1.1
RP/0/0/CPU0:Dec 16 21:04:45.269 : pce_server[1117]: DBG-PCEP:pce_set_peer_state:161 pce_set_peer_state: Peer 1.0.1.1 state changed from Idle to Keep Wait
RP/0/0/CPU0:Dec 16 21:04:45.269 : pce_server[1117]: DBG-PCEP:tcp_process_passive_open:1328 Incoming TCP session from 1.0.1.1 to 1.0.1.99 is accepted
RP/0/0/CPU0:Dec 16 21:04:45.269 : pce_server[1117]: DBG-PCEP:pcep_open:610 Opening PCEP for peer 1.0.1.1
RP/0/0/CPU0:Dec 16 21:04:45.269 : pce_server[1117]: DBG-PCEP:pce_enqueue_open_msg:1139 Sending OPEN message (version 1, ka 30, deadtime 120, update cap Y, instantiation cap Y, segment routing cap Y)
