- play_arrow Configuring IS-IS
- play_arrow Configuring a Basic IS-IS Network
- Understanding IS-IS Configuration
- Example: Configuring IS-IS
- Understanding IS-IS Areas to Divide an Autonomous System into Smaller Groups
- Example: Configuring a Multi-Level IS-IS Topology to Control Interarea Flooding
- Understanding IS-IS Designated Routers
- Configuring Designated Router Election Priority for IS-IS
- Configuring an ISO System Identifier for the Router
- Understanding Default Routes
- How to Configure Multiple Independent IGP Instances of IS-IS
- play_arrow Configuring IS-IS Authentication and Checksums
- Configuring IS-IS Authentication
- Configuring IS-IS Authentication Without Network-Wide Deployment
- Understanding Hitless Authentication Key Rollover for IS-IS
- Example: Configuring Hitless Authentication Key Rollover for IS-IS
- Understanding Checksums on IS-IS Interfaces for Error Checking
- Example: Enabling Packet Checksums on IS-IS Interfaces for Error Checking
- play_arrow Configuring IS-IS Routing Policy and Route Redistribution
- Understanding Routing Policies
- Understanding Backup Selection Policy for IS-IS Protocol
- Example: Configuring Backup Selection Policy for IS-IS Protocol
- Configuring Backup Selection Policy for the IS-IS Protocol
- Example: Redistributing OSPF Routes into IS-IS
- Example: Configuring IS-IS Route Leaking from a Level 2 Area to a Level 1 Area
- Handling of the IS-IS Binding SID S Flag and RFC 7794 Prefix Attribute Flags
- Understanding BGP Communities, Extended Communities, and Large Communities as Routing Policy Match Conditions
- Example: Configuring a Routing Policy to Redistribute BGP Routes with a Specific Community Tag into IS-IS
- IS-IS Extensions to Support Route Tagging
- Example: Configuring a Routing Policy to Prioritize IS-IS Routes
- Configuring Overloading of Stub Networks
- play_arrow Configuring IS-IS Bidirectional Forwarding Detection
- play_arrow Configuring IS-IS Flood Groups
- play_arrow Configuring IS-IS Multitopology Routing and IPv6 Support
- IS-IS Multicast Topologies Overview
- Example: Configuring IS-IS Multicast Topology
- Understanding Dual Stacking of IPv4 and IPv6 Unicast Addresses
- Example: Configuring IS-IS Dual Stacking of IPv4 and IPv6 Unicast Addresses
- Understanding IS-IS IPv4 and IPv6 Unicast Topologies
- Example: Configuring IS-IS IPv4 and IPv6 Unicast Topologies
- play_arrow Configuring IS-IS Link and Node Link Protection
- Understanding Loop-Free Alternate Routes for IS-IS
- Example: Configuring Node-Link Protection for IS-IS Routes in a Layer 3 VPN
- Understanding Remote LFA over LDP Tunnels in IS-IS Networks
- Configuring Remote LFA Backup over LDP Tunnels in an IS-IS Network
- Example: Configuring Remote LFA over LDP Tunnels in IS-IS Networks
- Understanding Weighted ECMP Traffic Distribution on One-Hop IS-IS Neighbors
- Example: Weighted ECMP Traffic Distribution on One-Hop IS-IS Neighbors
- play_arrow Configuring IS-IS Traffic Engineering
- IS-IS Extensions to Support Traffic Engineering
- Using Labeled-Switched Paths to Augment SPF to Compute IGP Shortcuts
- Example: Enabling IS-IS Traffic Engineering Support
- Understanding Forwarding Adjacencies
- Example: Advertising Label-Switched Paths into IS-IS
- Understanding Wide IS-IS Metrics for Traffic Engineering
- Example: Enabling Wide IS-IS Metrics for Traffic Engineering
- Understanding LDP-IGP Synchronization
- Example: Configuring Synchronization Between IS-IS and LDP
- Layer 2 Mapping for IS-IS
- Example: Configuring Layer 2 Mapping for IS-IS
- Understanding Source Packet Routing in Networking (SPRING)
- Understanding Adjacency Segments, Anycast Segments, and Configurable SRGB in SPRING
- Example: Configuring SRGB in Segment Routing for IS-IS
- Example: Configuring Anycast and Prefix Segments in SPRING for IS-IS to Increase Network Speed
- Configuring Segment Routing Global Blocks Label Ranges in SPRING for IS-IS Protocol
- Configuring Anycast and Prefix segments in SPRING for IS-IS Protocol
- Flexible Algorithms in IS-IS for Segment Routing Traffic Engineering
- Configuring Flexible Algorithm for Segment Routing Traffic Engineering
- Understanding Topology-Independent Loop-Free Alternate with Segment Routing for IS-IS
- Configuring Topology-Independent Loop-Free Alternate with Segment Routing for IS-IS
- Example: Configuring Topology Independent Loop-Free Alternate with Segment Routing for IS-IS
- Static Adjacency Segment Identifier for ISIS
- Understanding Segment Routing over RSVP Forwarding Adjacency in IS-IS
- Understanding IS-IS Microloop Avoidance
- How to Enable SRv6 Network Programming in IS-IS Networks
- Example: Configuring SRv6 Network Programming in IS-IS Networks
- How to Enable Link Delay Measurement and Advertising in IS-IS
- How to Enable Strict SPF SIDs and IGP Shortcut
- play_arrow Configuring IS-IS Scaling and Throttling
- Understanding Link-State PDU Throttling for IS-IS Interfaces
- Example: Configuring the Transmission Frequency for Link-State PDUs on IS-IS Interfaces
- Understanding the Transmission Frequency for CSNPs on IS-IS Interfaces
- Example: Configuring the Transmission Frequency for CSNP Packets on IS-IS Interfaces
- Understanding IS-IS Mesh Groups
- Example: Configuring Mesh Groups of IS-IS Interfaces
- play_arrow Configuring IS-IS CLNS
- play_arrow Configuring IS-IS on Logical Systems
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- play_arrow Monitoring and Troubleshooting Network Issues
- play_arrow Monitoring Networks
- play_arrow Troubleshooting Network Issues
- Working with Problems on Your Network
- Isolating a Broken Network Connection
- Identifying the Symptoms of a Broken Network Connection
- Isolating the Causes of a Network Problem
- Taking Appropriate Action for Resolving the Network Problem
- Evaluating the Solution to Check Whether the Network Problem Is Resolved
- play_arrow Troubleshooting IS-IS
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- play_arrow Configuration Statements and Operational Commands
Supported Standards for IS-IS
Junos OS substantially supports the following standards for IS-IS.
International Organization for Standardization/International Electrotechnical Commission (ISO/IEC) 8473, Information technology — Protocol for providing the connectionless-mode network service
ISO 9542, End System to Intermediate System Routing Exchange Protocol for Use in Conjunction with the Protocol for the Provision of the Connectionless-mode Network Service
ISO/IEC 10589, Information technology — Telecommunications and information exchange between systems — Intermediate System to Intermediate System intra-domain routeing information exchange protocol for use in conjunction with the protocol for providing the connectionless-mode network service (ISO 8473)
RFC 1195, Use of OSI IS-IS for Routing in TCP/IP and Dual Environments
RFC 5120, M-ISIS: Multi Topology (MT) Routing in Intermediate System to Intermediate Systems (IS-ISs)
RFC 5130, A Policy Control Mechanism in IS-IS Using Administrative Tags
RFC 5286, Basic Specification for IP Fast Reroute: Loop-Free Alternates
RFC 5301, Dynamic Hostname Exchange Mechanism for IS-IS
RFC 5302, Domain-Wide Prefix Distribution with Two-Level IS-IS
RFC 5303, Three-Way Handshake for IS-IS Point-to-Point Adjacencies
RFC 5304, IS-IS Cryptographic Authentication
RFC 5305, IS-IS Extensions for Traffic Engineering
RFC 5306, Restart Signaling for IS-IS
RFC 5307, IS-IS Extensions in Support of Generalized Multi-Protocol Label Switching (GMPLS)
RFC 5308, Routing IPv6 with IS-IS
RFC 5310, IS-IS Generic Cryptographic Authentication
RFC 5880, Bidirectional Forwarding Detection (BFD)
RFC 6119, IPv6 Traffic Engineering in IS-IS
RFC 6232, Purge Originator Identification TLV for IS-IS
RFC 6233, IS-IS Registry Extension for Purges
RFC 7775, IS-IS Route Preference for Extended IP and IPv6 Reachability
RFC 7794, IS-IS Prefix Attributes for Extended IPv4 and IPv6 Reachability
RFC 7981, IS-IS Extensions for Advertising Router Information
RFC 8202, IS-IS Multi-Instance
RFC 8518, Selection of Loop-Free Alternates for Multi-Homed Prefixes
RFC 8570, IS-IS Traffic Engineering (TE) Metric Extensions
RFC 8667, IS-IS Extensions for Segment Routing
RFC 8706, Restart Signaling for IS-IS
RFC 8919, IS-IS Application-Specific Link Attributes
RFC 9350 IGP Flexible Algorithm (Partial support)
RFC 9352, IS-IS Extensions to Support Segment Routing over the IPv6 Data Plane
The following RFCs do not define standards, but provide information about IS-IS and related technologies. The IETF classifies them as “Informational.”
RFC 2104, HMAC: Keyed-Hashing for Message Authentication
RFC 2973, IS-IS Mesh Groups
RFC 3277, Intermediate System to Intermediate System (IS-IS) Transient Blackhole Avoidance
RFC 3358, Optional Checksums in Intermediate System to Intermediate System (ISIS)
RFC 3359, Reserved Type, Length and Value (TLV) Codepoints in Intermediate System to Intermediate System
RFC 3373, Three-Way Handshake for Intermediate System to Intermediate System (IS-IS) Point-to-Point Adjacencies
RFC 3567, Intermediate System to Intermediate System (IS-IS) Cryptographic Authentication
RFC 3719, Recommendations for Interoperable Networks using Intermediate System to Intermediate System (IS-IS)
RFC 3787, Recommendations for Interoperable IP Networks using Intermediate System to Intermediate System (IS-IS)
RFC 3847, Restart Signaling for Intermediate System to Intermediate System (IS-IS)
RFC 5309, Point-to-Point Operation over LAN in Link State Routing Protocols
RFC 6151, updated Security Considerations for the MD5 Message-Digest and the HMAC-MD5 Algorithms
Internet draft draft-ietf-isis-wg-255adj-02.txt, Maintaining more than 255 circuits in IS-IS
Internet draft draft-przygienda-flood-reflector-00, Flood Reflectors
Internet draft draft-przygienda-lsr-flood-reflection-01, IS-IS Flood Reflection
