Summary: [master]fix #4716 show ipv6 interfaces neighbor_ip is N/A issue #946
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When exec 'show ipv6 interfaces', the neighbor_ip will always be 'N/A' which will confuse the consumers. After checking we found that this is a show issue. As we know, there will be one local linked IPV6 address for every valid interface. In show/main.py, the interface's ipv6 neighbor ip will always be written by this local linked IPV6's neighbor_ip address which is 'N/A'. And i think this part code of 'show ipv6 interface' was copied from 'show ip interface' before, right? Yea, some change is necessary!
This is bug fixing.
Code change.
upgrate config_db.config attached in show ipv6 interfaces command result doesn't conclude neighbor ipv6 address sonic-buildimage#4716 and show ipv6 interfaces