Symptom
The input queue of the SVi gets wedged at 376/375 when the switch gets DHCPv6 solicit packets sent through the Vlan.
C9500H(config-if)#do show int vlan 101 | in nput q
Input queue: 376/375/8165/0 (size/max/drops/flushes); Total output drops: 0
Conditions
This is seen when ipv6 dhcp server is configured on the SVI
interface Vlan101
ipv6 dhcp server <--- ipv6 dhcp server configured on SVI
and
No dhcp pool is configured globally
Workaround
Create global dhcp server pool
or
Remove ipv6 dhcp server command from interface
Further Problem Description
