Description
config bgp listen limit 2，show ip bgp su display config is effect,but in fact dynamically BGP neighbors is 3,(after execute clear bgp, still 3)
Steps to reproduce the issue:
- sonic config dynamically BGP neighbors with DUT4。
switch1# vtysh
switch1# configure terminal
switch1(config)# router bgp 65100
switch1(config-router)# neighbor PEER peer-group
switch1(config-router)# neighbor PEER remote-as 100
switch1(config-router)# bgp listen range 10.0.0.0/16 peer-group PEER
switch1(config-router)# bgp listen limit 2
- config bgp listen limit 2
- clear bgp ,rebuild bgp neighbors
- show ip bgp su, bgp neighbors is 3
Describe the results you received:
config bgp listen limit 2, dynamically BGP neighbors is 3
Describe the results you expected:
config bgp listen limit 2, dynamically BGP neighbors is 2
Additional information you deem important (e.g. issue happens only occasionally):
**Output of `show version`:**
```
root@switch1:/home/admin# show version
SONiC Software Version: SONiC.201803_rj.0-9e5e2a4-20181128.173206
Distribution: Debian 8.11
Kernel: 3.16.0-5-amd64
Build commit: 9e5e2a4
Build date: Wed Nov 28 17:35:18 UTC 2018
Built by: ngcf@ubuntu01
Docker images:
REPOSITORY TAG IMAGE ID SIZE
docker-orchagent-brcm 201803_rj.0-9e5e2a4-20181128.173206 ff563f8a8a5e 364.6 MB
docker-orchagent-brcm latest ff563f8a8a5e 364.6 MB
docker-teamd 201803_rj.0-9e5e2a4-20181128.173206 2bec314c0cba 356 MB
docker-teamd latest 2bec314c0cba 356 MB
docker-fpm-frr 201803_rj.0-9e5e2a4-20181128.173206 8e8c63535800 360.9 MB
docker-fpm-frr latest 8e8c63535800 360.9 MB
docker-syncd-brcm 201803_rj.0-9e5e2a4-20181128.173206 271c843e1f4d 986.1 MB
docker-syncd-brcm latest 271c843e1f4d 986.1 MB
docker-lldp-sv2 201803_rj.0-9e5e2a4-20181128.173206 e6372670ce81 365.3 MB
docker-lldp-sv2 latest e6372670ce81 365.3 MB
docker-snmp-sv2 201803_rj.0-9e5e2a4-20181128.173206 682b40d6e204 387.9 MB
docker-snmp-sv2 latest 682b40d6e204 387.9 MB
docker-platform-monitor 201803_rj.0-9e5e2a4-20181128.173206 5482ac5f494a 367.2 MB
docker-platform-monitor latest 5482ac5f494a 367.2 MB
docker-router-advertiser 201803_rj.0-9e5e2a4-20181128.173206 f7dabf27a671 348.3 MB
docker-router-advertiser latest f7dabf27a671 348.3 MB
docker-dhcp-relay 201803_rj.0-9e5e2a4-20181128.173206 89e26a55b78d 350.1 MB
docker-dhcp-relay latest 89e26a55b78d 350.1 MB
docker-database 201803_rj.0-9e5e2a4-20181128.173206 c7238159374c 350.6 MB
docker-database latest c7238159374c 350.6 MB
GIT version:
MODULE BRANCH COMMIT_ID VERSION
sonic-swss-common 201803_rj 60a0a29dd09a
sonic-kernel 201803_rj 6cfcef24f4e0
sonic-sairedis 201803_rj 4ac34bb472e8
sonic-swss 201803_rj 3791b9405874
sonic-quagga 201803_rj b497e090787c
sonic-dbsync 201803_rj 1d0b2165e097
sonic-py-swsssdk 201803_rj ca540c9c51e2
sonic-snmpagent 201803_rj 12bc0e0c9843
sonic-ptf 201803_rj aac6efd0a78b
sonic-utilities 201803_rj d3bbeec71330
sonic-platform-common 201803_rj 0a6094670d0c
sonic-platform-daemons 201803_rj 31c007e260ba
sonic-frr 201803_rj 26473f4b87c5
sonic-platform-modules-ruijie master 064c83605b6a
sonic-sai 201803_rj c7c198d7d2cb
sonic-ptf-sairedis 201803_rj aac6efd0a78b
sonic-saithrift-ctypesgen 201803_rj 3d2d98033395
sonic-googletest 201803_rj ec44c6c1675c
sonic-brcm-sai brcm-sai-GA ad131e7a1157
sonic-initramfs-tools 201803_rj 8ec9eca084bf
sonic-libteam master 8c1cea00a219 v1.26
sonic-libteam-debian master da006f226c53 da006f2
sonic-supervisor master 85d0b206928f
sonic-isc-dhcp master 1d74837d0203
sonic-lldpd master 66f8a863e9ae
sonic-libnl3 master b77c0e49cb64 b77c0e49c
sonic-pam_tacplus master 8dddbec2940f v1.4.1
sonic-libnss-tacplus master 19008ab68d9d 19008ab
SDK version:
||/ Name Version Architecture Description
+++-==============================-============-============-==========================================================
ii libopennsl 3.5.0.4 amd64 shared library for broadcom opennsl sdk
ii libopennsl-dev 3.5.0.4 amd64 development library for broadcom opennsl sdk
ii libsaibcm 3.2.1.1 amd64 Switch Abstraction Interface sdk based on Broadcom opennsl
ii opennsl-modules-3.16.0-5-amd64 3.5.0.4 amd64 kernel modules for broadcom opennsl sdk
```
**Attach debug file `sudo generate_dump`:**
```
config_db.json.txt
Description
config bgp listen limit 2，show ip bgp su display config is effect,but in fact dynamically BGP neighbors is 3,(after execute clear bgp, still 3)
Steps to reproduce the issue:
switch1# vtysh
switch1# configure terminal
switch1(config)# router bgp 65100
switch1(config-router)# neighbor PEER peer-group
switch1(config-router)# neighbor PEER remote-as 100
switch1(config-router)# bgp listen range 10.0.0.0/16 peer-group PEER
switch1(config-router)# bgp listen limit 2
Describe the results you received:
config bgp listen limit 2, dynamically BGP neighbors is 3
Describe the results you expected:
config bgp listen limit 2, dynamically BGP neighbors is 2
Additional information you deem important (e.g. issue happens only occasionally):
config_db.json.txt