H3C S7500 Series Ethernet Switches Operation Manual

Operation Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 5 IS-IS Configuration
5-9
To do... Use the command... Remarks
Enter system view
system-view
—
Configure ISIS isis [ tag ]
Required
By default, no IS-IS routing process
is enabled.
5.3.2 Configuring a NET
A NET defines the current IS-IS area address and router system ID.
Follow these steps to configure a NET:
To do... Use the command... Remarks
Enter system view
system-view
—
Enter IS-IS view isis [ tag ] —
Enable network entity
network-entity net
Required
5.3.3 Enabling IS-IS on the Specified Interface
Follow these steps to enable IS-IS on the specified interface:
To do... Use the command... Remarks
Enter system view
system-view
—
Enter interface view
interface interface-type interface-number
—
Enable IS-IS isis enable [ tag ] Required
5.3.4 Configuring DIS Priority
In a broadcast network, IS-IS needs to select a router as DIS.
When a DIS needs to be selected from the IS-IS neighbors on the broadcast network,
the Level-1 DIS and Level-2 DIS should be selected respectively. The higher priority a
DIS has, the more likely it is to be chosen. If two or more routers with the highest
priorities exist on the broadcast network, the router that has the greatest MAC
address will be chosen. For adjacent routers that have the same priority of 0, the
router that has the greatest MAC address will still be chosen.
Level-1 DIS and Level-2 DIS are elected respectively. You can set different priorities
for DISs at different levels to be elected.
Follow these steps to configure DIS priority: