[BGP]Adding configuration knob to allow advertise Loopback ipv6 /128 prefix #30
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volodymyrsamotiy
approved these changes
May 27, 2022
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Why I did it
By default when IPv6 address is configured with /128 as subnet mask in Loopback0 interface, it will be advertised as prefix with /64 subnet.
To control this behavior a new field 'bgp_adv_lo_prefix_as_128' is introduced in DEVICE_METADATA table which when set to true will advertise prefix with /128 subnet as it is.
How I did it
Modified the jinja templates and yang model to parse this field and advertise route as /128
How to verify it
Added UT in sonic-cfggen test as well yang to verify it
Which release branch to backport (provide reason below if selected)
Description for the changelog
Link to config_db schema for YANG module changes
A picture of a cute animal (not mandatory but encouraged)