Intermediate System to Intermediate System | 571
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Intermediate System to Intermediate System
Intermediate System to Intermediate System is supported on the following platforms: e z
platforms.
IS-IS is supported on the E-Series ExaScale platform with FTOS 8.1.1.0 and later. It is supported on the
with FTOS 8.3.10.0 and on the
z platform with FTOS 9.0.0.0
Intermediate System to Intermediate System (IS-IS) protocol is an interior gateway protocol (IGP) that
uses a shortest-path-first algorithm. Dell Force10 supports both IPv4 and IPv6 versions of IS-IS, as it is
detailed in this chapter.
• Protocol Overview on page 571
• IS-IS Addressing on page 572
• Multi-Topology IS-IS on page 573
• Graceful Restart on page 574
• Implementation Information on page 575
• Configuration Information on page 576
• IS-IS Metric Styles on page 595
• Sample Configuration on page 599
IS-IS protocol standards are listed in the Chapter 50, Standards Compliance chapter.
Protocol Overview
The intermediate-system-to-intermediate-system (IS-IS) protocol, developed by the International
Organization for Standardization (ISO), is an interior gateway protocol (IGP) that uses a shortest-path-first
algorithm.
Note: This protocol supports routers passing both IP and OSI traffic, though the Dell Force10
implementation supports only IP traffic.
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