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Disconnection of Attached Services After the NE80E Is Upgraded from 12002t.01 to V300R001C01B05D

Publication Date:  2012-07-27 Views:  90 Downloads:  0

Issue Description

After the NE80E is upgraded from 12002t.01 to V300R001C01B05D:
1. Some attached users cannot access the extranet.
2. Many routes of other segments are displayed in the routing table of the peer PE. 

Alarm Information


Handling Process

1. To bind users to the static ARP, add the VID:
arp static 0004-75d5-22ed
changed into:
arp static 0004-75d5-22ed VID 8
2. Change the name of the ip-prefix list and apply it in BGP again:
ip ip-prefix nt_mpls_jstelecomITMS index 10 permit 12
changed into
ip ip-prefix jstelecomITMS index 10 permit 12
ipv4-family vpn-instance nt_mpls_jstelecomITMS
peer as-number 4809
peer ip-prefix jstelecomITMS export // apply again
import-route direct 


Root Cause

1. If you intend to bind users to the static ARP under the sub-interface, the VID or the vpn-instance must be added.
The interface is configured as follows:
interface GigabitEthernet1/0/8.8
vlan-type dot1q 8
description conn to SheweiZhongxin-CORP
ip address
The characters of the ip ip-prefix list range from 1 to 19. After the upgrade, the ip-prefix list is invalid. Thus, other VPN routes are advertised. 


After the NE80E is upgraded to V300R001C01B05D, you are recommended to:
1. Check whether the static ARP is bounded.
2. Check the configuration of the ip-prefix list.