Setting The Lsdb Overload Bit; Configuring Is-Is Authentication; Configuration Prerequisites; Configuring Neighbor Relationship Authentication - H3C LS-3100-52P-OVS-H3 Operation Manual

To do...
Enter system view
Enter IS-IS view
Configure the SPF
calculation interval

Setting the LSDB Overload Bit

By setting the overload bit in sent LSPs, a router informs other routers of a failure that makes it
incapable of routing and forwarding packets.
When an IS-IS router cannot record the complete LSDP due to running out of memory or some other
reasons, it will calculate wrong routes. To make troubleshooting easier in this case, you can temporarily
isolate the router from the IS-IS network by setting the overload bit.
Follow these steps to set the LSDB overload bit:
To do...
Enter system view
Enter IS-IS view
Set the overload bit

Configuring IS-IS Authentication

Configuration Prerequisites

Complete the following tasks before this configuration:
Configure network layer addresses for interfaces to make neighboring nodes accessible to each
other at the network layer.
Enable IS-IS.

Configuring Neighbor Relationship Authentication

With neighbor relationship authentication configured, an interface adds the password in the specified
mode into hello packets to the peer and checks the password in the received hello packets. If the
authentication succeeds, it forms the neighbor relationship with the peer.
The authentication mode and password at both ends must be identical.
Use the command...
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
timer spf maximum-interval
[ initial-interval [ second-wait-interval ] ]
Use the command...
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
set-overload [ on-startup [ [ start-from-nbr
system-id [ timeout1 [ nbr-timeout ] ] ] | timeout2 ]
[ allow { interlevel | external } * ]
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Remarks
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Optional
The default SPF calculation
interval is 10 seconds.
Remarks
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Required
Not set by
default