Filter
Top Products
Configuring IS-IS Configuring IS-IS
page 3-22 OmniSwitch 6800/6850/9000 Advanced Routing Configuration Guide December 2007
Note. Both the ip isis interface hello-auth-type and ip isis interface level hello-auth-type can be config-
ured for the authentication of either simple or MD5 type with the password specified either in plain text or
in encrypted form. For the explanations about the authentication types and the key types refer Simple
authentication and MD5 authentication.
Modifying Interface Parameters
To configure the interval between the successive Hello PDUs at the given IS-IS level on an interface, enter
the ip isis interface level hello-interval command, as shown:
-> ip isis interface man-1 level 1 hello-interval 50
To configure the number of Hello PDUs before the router declares the adjacency as down, use the ip isis
interface level hello-multiplier command, as shown:
-> ip isis interface lan-1 level 1 hello-multiplier 10
To configure the metric value of the IS-IS level of the interface, enter the ip isis interface level metric
command, as shown:
-> ip isis interface interface-1 level 1 metric 25
Configuring an interface as passive suppresses IS-IS packets from being sent or received on the interface.
For example, to configure the interface from receiving Level-1 IS-IS packets, enter the
ip isis interface level passive command, as shown:
-> ip isis interface lan-5 level 1 passive
Configuring the priority value helps to determine a DIS in a multi-access network. To configure the prior-
ity of the IS-IS router interface for the election of a DIS in a multi-access network, enter the
ip isis interface level priority command, as shown:
-> ip isis interface vlan-isis level 1 priority 4
There are several other interface parameters that can be modified on a specified interface. Most of these
deal with timer settings.
The following table shows the various interface parameters that can be set:
These parameters can be added any time. In broadcast networks, the DIS sends CSNP packets to maintain
database synchronization. For example, to configure the CSNP PDUs time interval to 50 seconds, enter the
following:
-> ip isis interface vlan-101 csnp-interval 50
ip isis interface csnp-interval Configures the time interval in seconds to send Complete Sequence
Number PDUs (CSNP) from the specified interface.
ip isis interface lsp-pacing-
interval
Configures the interval between IS-IS Link State PDUs (LSP) sent
from the specified interface.
ip isis interface retransmit-
interval
Configures the minimum time between Link State PDU (LSP) trans-
missions on a point-to-point interface.
ip isis interface default-type Configures the interface type to default (Broadcast).