By default, Dell Networking OS supports dynamic host name exchange to assist with troubleshooting and configuration. By assigninga name to an IS-IS NET address, you can track IS-IS information on that address easier. Dell Networking OS does not support ISOCLNS routing; however, the ISO NET format is supported for addressing.To support IPv6, the Dell Networking implementation of IS-IS performs the following tasks:• Advertises IPv6 information in the PDUs.• Processes IPv6 information received in the PDUs.• Computes routes to IPv6 destinations.• Downloads IPv6 routes to the RTM for installing in the FIB.• Accepts external IPv6 information and advertises this information in the PDUs.The following table lists the default IS-IS values.Table 45. IS-IS Default ValuesIS-IS Parameter Default ValueComplete sequence number PDU (CSNP) interval 10 secondsIS-to-IS hello PDU interval 10 secondsIS-IS interface metric 10Metric style NarrowDesignated Router priority 64Circuit Type Level 1 and Level 2IS Type Level 1 and Level 2Equal Cost Multi Paths 16Configuration InformationTo use IS-IS, you must configure and enable IS-IS in two or three modes: CONFIGURATION ROUTER ISIS, CONFIGURATIONINTERFACE, and ( when configuring for IPv6) ADDRESS-FAMILY mode. Commands in ROUTER ISIS mode configure IS-IS globally,while commands executed in INTERFACE mode enable and configure IS-IS features on that interface only. Commands in theADDRESS-FAMILY mode are specific to IPv6.NOTE: When using the IS-IS routing protocol to exchange IPv6 routing information and to determine destinationreachability, you can route IPv6 along with IPv4 while using a single intra-domain routing protocol. The configurationcommands allow you to enable and disable IPv6 routing and to configure or remove IPv6 prefixes on links.Except where identified, the commands described in this chapter apply to both IPv4 and IPv6 versions of IS-IS.Configuration Tasks for IS-ISThe following describes the configuration tasks for IS-IS.• Enabling IS-IS• Configure Multi-Topology IS-IS (MT IS-IS)• Configuring IS-IS Graceful Restart• Changing LSP Attributes• Configuring the IS-IS Metric Style• Configuring IS-IS Cost• Changing the IS-Type• Controlling Routing Updates• Configuring Authentication PasswordsIntermediate System to Intermediate System 449
