55 neighbor enforce-multihop, 56 neighbor filter-list, Neighbor enforce – PLANET XGS3-24042 User Manual
Page 656: Multihop, Neighbor filter, List

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Switch(config-router)#neighbor 11.1.1.120 ebgp-multihop
on 11.1.1.120
Switch(config-router)#neighbor 10.1.1.64 ebgp-multihop
After this, switches in different segments will be able to create BGP neighbor relationship.
37.55 neighbor enforce-multihop
Command:
neighbor {
no neighbor {
Function:
Enforce the multihop connection to the neighbor. The “no neighbor {
enforce-multihop” command cancels this configuration.
Parameter:
Default:
Not enforced.
Command Mode:
BGP route mode and address-family mode
Usage Guide:
In fact the direct route can not be enforced to multihop, however will be treated as a multihop
connection with this configuration, namely the check originally only performed on IBGP and EBGP
of non-direct routes will be performed on all after this attribute set. The nexthop direct connected
check will not be performed at exit in enforce multihop conditions.
Example:
Enforce neighbor 10.1.1.66 as multihop connection.
Switch(config-router)#neighbor 10.1.1.66 enforce-multihop
37.56 neighbor filter-list
Command:
neighbor {
no neighbor {