Configure IS-IS Global Parameters

Use the following procedure to configure IS-IS global parameters. SPBM uses IS-IS to discover network topology, build shortest path trees between network nodes, and communicate network information in the control plane.

Procedure

  1. In the navigation pane, expand Configuration > Fabric.
  2. Select IS-IS.
  3. Select the Globals tab.
  4. Configure the global IS-IS parameters.
  5. Select Apply.

Globals Field Descriptions

Use the data in the following table to use the Globals tab.

Name

Description

AdminState

Specifies the global status of IS-IS on the switch: on or off. The default is off.

LevelType

Sets the router type globally:

  • level1: Level-1 router type

  • level1and2: Level–1/2 router type is not supported.

The default value is level1.

SystemId

Specifies the IS-IS system ID for the switch. Valid value is a 6–byte value in the format <xxxx.xxxx.xxxx>.

Important:

After you have configured the SPBM nickname and enabled IS-IS, you must change the nickname when you change the system ID. If you want to maintain the same nickname with a different system ID, see Job aid.

MaxLspGenInt

Specifies the maximum interval, in seconds, between generated LSPs by this Intermediate system. The value must be greater than any value configured for RxmtLspInt.

The default value is 900 seconds.

CsnpInt

Specifies the Complete Sequence Number Packet (CSNP) interval in seconds. This is a system level parameter that applies for L1 CSNP generation on all interfaces.

The default value is 10.

RxmtLspInt

Specifies the minimum time between retransmission of an LSP, in seconds. This defines how fast the switch resends the same LSP. This is a system level parameter that applies for L1 retransmission of LSPs.

The default value is 5 seconds.

PSNPInterval

Specifies the Partial Sequence Number Packet (PSNP) interval in seconds. This is a system level parameter that applies for L1 PSNP generation on all interfaces.

The default value is 2.

SpfDelay

Specifies the SPF delay in milliseconds. This value is used to pace successive SPF runs. The timer prevents two SPF runs from being scheduled very closely.

The default value is 100 milliseconds.

HostName

Specifies the IS-IS system name. This can be used as the host name for dynamic host name exchange in accordance with RFC 2763.

By default, the system uses the global system name as the IS-IS system name, until you manually configure it. Also, the system does not save the global system name in the running configuration on the switch.

IpSourceAddress

Specifies IP source address for SPBM IP shortcuts.

Ipv6SourceAddress

Specifies IPv6 source address for SPBM IP shortcuts.

IpTunnelSourceAddress

Specifies the IS-IS IPv4 tunnel source address.

IpTunnelVrf

Specifies the VRF name associated with the IP tunnel.

IpTunnelOverlay

Permits the configuration of the tunnel source address even though it belongs to a VRF with an attached I-SID. The default is disabled.

MgmtClipIpAddr

Specifies the DvR management IP address for this node, in the DvR domain.

BackboneEnable

Select to enable this node to join the DvR backbone so that it can receive redistributed DvR host routes from all DvR Controllers in the network.

FanMember

Specifies whether the node is a member of the Fabric Area Network (FAN) .

DynamicallyLearnedArea

For FAN members, specifies the IS-IS area that is dynamically learned from the neighbor‘s Hello PDU if the node does not have the IS-IS manual area configured.

HelloPadding

Configures IS-IS hello padding on all IS-IS network-to-network interface (NNI) links. IS-IS hello padding is enabled by default.
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