Enabling Source Address Check For Hello Packets On A Ppp Interface; Disabling An Interface From Sending/Receiving Is-Is Packets; Enabling An Interface To Send Small Hello Packets - HP VSR1000 Configuration Manual

Step
2. Enter interface view.
3. Configure a DIS priority for
the interface.
Enabling source address check for hello packets on a PPP
interface
An IS-IS PPP interface can have a peer on a different network. Perform this task to configure an IS-IS PPP
interface to establish neighbor relationship only with a peer on the same network.
To enable source address check for hello packets on a PPP interface:
Step
Enter system view.
1.
2. Enter interface view.
3. Enable source address
check for hello packets on
a PPP interface.

Disabling an interface from sending/receiving IS-IS packets

After being disabled from sending and receiving hello packets, an interface cannot form any neighbor
relationship, but can advertise directly connected networks in LSPs through other interfaces. This can save
bandwidth and CPU resources, and ensures that other routers know networks directly connected to the
interface.
To disable an interface from sending and receiving IS-IS packets:
Step
1. Enter system view.
2. Enter interface view.
3. Disable the interface from
sending and receiving IS-IS
packets.

Enabling an interface to send small hello packets

IS-IS messages cannot be fragmented at the IP layer because they are directly encapsulated in frames.
Any two IS-IS neighboring routers must negotiate a common MTU. To avoid sending big hellos to save
bandwidth, enable the interface to send small hello packets without CLVs.
Command
interface interface-type
interface-number
isis dis-priority value [ level-1 |
level-2 ]
Command
system-view
interface interface-type
interface-number
isis peer-ip-check
Command
system-view
interface interface-type
interface-number
isis silent
140
Remarks
N/A
The default setting is 64.
Remarks
N/A
N/A
By default, an IS-IS PPP interface can
have a peer on a different network.
The command applies only to PPP
interfaces.
Remarks
N/A
N/A
By default, the interface can send
and receive IS-IS packets.