Capability Opaque; Capability Vrf-Lite - Zte ZXR10 8900 Series Command Reference Manual

Purpose
Command Modes
Syntax
Defaults
Instructions
Example
Related
Commands
Purpose
Command Modes
Syntax
Defaults
Instructions

capability opaque

Use this command to enable routes to support Opaque LSA. Dis-
able it with the no form of this command.
Router configuration

capability opaque

no capability opaque
Opaque LSA is supported
� This command is supported after the platform version 4.6.02.
� In the process of the exchange of the link state database,
opaque LSA included in the database summary list is trans-
mitted to neighbor routers also supporting opaque LSA.
� When a router floods opaque LSA to neighbor routers, it firstly
checks whether the neighbor routers support opaque LSA.
Opaque LSA is transmitted only to neighbor routers supporting
the function. More accurately speaking, the Opaque LSA is
added into the link state retransmit list of neighbor routers.
When packets of link state update are multicast, the neighbor
routers that do not support the function receive the advertise-
ment passively and then simply discard it.
This example makes the router not support opaque LSA.
ZXR10(config)#router ospf 1
ZXR10(config-router)#no capability opaque
show ip ospf database opaque-area
show ip ospf database opaque-link

capability vrf-lite

Use this command to make routes disable the loop-avoiding of
the tag and down bits in a VRF instance. If this command is not
configured, it means enabling the loop-avoiding .
Router configuration

capability vrf-lite

no capability vrf-lite
Routing loop is prevented by default.
� This command is supported after the platform version 4.6.03.
� This command can be only configured in VRF instances.
� In the circumstance that the low 16 bits of tags are the same
with the AS number of local BGP or when the downbit is set
for Type 5 and Type 7 LSAs, and if the capability vrf-lite
command is not configured in the instance, the routes will not
be calculated. Otherwise, the routes will be calculated.
Confidential and Proprietary Information of ZTE CORPORATION
Chapter 3 OSPF Protocol
43