3Com Switch 7700 Configuration Manual page 142

134 C 5: IP R
HAPTER OUTING
P O
ROTOCOL PERATION
Perform the following configuration in IS-IS view.
Table 55 Setting the Network Entity Title (NET)
Operation
Set Network Entity Title (NET)
Delete a NET
The format of parameter net is X...X.XXXXXXXXXXXX.XX, among which the first
"X...X" is the area address, the twelve Xs in the middle is the System ID of the
router. The last XX should be 00.
CAUTION: A router can be configured with multiple area addresses. However, the
routers in the same area should be configured with the same area address. Every
router must have a unique System ID.
Enabling IS-IS on the Specified Interface
After enabling IS-IS, you must specify on which interfaces IS-IS will run.
Perform the following configurations in VLAN interface view.
Table 56 Enabling IS-IS on the Specified Interface
Operation
Enable IS-IS on the specified Interface
Cancel this designation
Configuring IS-IS Route Metric Type
IS-IS routing protocol has two styles of route metrics:
Narrow: the value of route metric ranges from 1 to 63.
■
Wide: the value of route metric ranges from 1 to 16777215.
■
The switch can choose either or both of the styles.
Perform the following configuration in IS-IS view.
Table 57 Configuring the Style for Route Metric Values of IS-IS Packets
Operation
Configure the style for route metric values of
IS-IS packets
Restore the default settings
By default, IS-IS only receives and sends the packets whose route metric is in
narrow style.
Setting IS-IS Link State Routing Cost
Users can configure the interface (default routing) cost.
Command
network-entity net
undo network-entity net
Command
isis enable [ tag ]
undo isis enable [ tag ]
Command
cost-style { narrow | wide |
wide-compatible | { compatible |
narrow-compatible } [ relax-spf-limit ] }
undo cost-style