05-09-2015 11:04 PM - edited 03-05-2019 01:26 AM
Dear Team
my router gateway is my BGP neighbor
without the BGP configured, im able to ping my gateway with no loss of ICMP .
if BGP is configured, then if i ping to my gateway, i get packet loss.
BGP drops when packet drop.
eBGP peering establishes, then drops, re-establishes , then drops for every 20 - 30 seconds
what would be the issue, please suggest
below are the configuration details
------------------------------------------------------------------------------
interface GigabitEthernet0/0/0
description ************GOOGLE INPUT***********
ip address 1.1.1.1 255.255.255.252
ip flow egress
load-interval 30
negotiation auto
!
router bgp XXXX
no bgp default ipv4-unicast
no bgp enforce-first-as
bgp log-neighbor-changes
bgp bestpath as-path multipath-relax
neighbor 1.1.1.2 remote-as YYYY
neighbor 1.1.1.2 password 7 *************************************
address-family ipv4
no synchronization
neighbor 1.1.1.2 activate
no auto-summary
exit-address-family
!
IND-INT#show interfaces gigabitEthernet 0/0/0
GigabitEthernet0/0/0 is up, line protocol is up
Hardware is 4XGE-BUILT-IN, address is xxxxxxxxx (bia xxxxxxxxx)
Description: ************GOOGLE INPUT***********
Internet address is 1.1.1.1/30
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 2/255
Encapsulation ARPA, loopback not set
Keepalive not supported
Full Duplex, 1000Mbps, link type is auto, media type is LX
output flow-control is off, input flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:02, output 00:00:46, output hang never
Last clearing of "show interface" counters never
Input queue: 0/375/0/0 (size/max/drops/flushes); Total output drops: 12830
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 9880000 bits/sec, 1040 packets/sec
30 second output rate 6970000 bits/sec, 4451 packets/sec
17080544846 packets input, 22698441757070 bytes, 0 no buffer
Received 1393 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 253977 multicast, 0 pause input
11445196608 packets output, 1842515648152 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
Regards
Narayan
05-11-2015 12:10 AM
Two things:
1. What the HW model you ar using ? is there any kind of high CPU after enabling BGP ? any kind of memory buffer logs ??
2. share the output of "sh log" and "sh ip route <GW-IP>" for 20-30 sec. when BGP is up and you are able to ping your GW with packet loss.
Vivek
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide