Upcoming Labs
The first few labs are already online; the list of ideas is much longer. Here they are:
Configure IS-IS Features
- Passive IS-IS Interfaces
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- Explain the need for passive interfaces
- Configure passive IS-IS interfaces
- If available, turn off the advertisement of inter-router prefixes
- Influence the Designated IS Election
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- Explain the need for DIS priority
- Configure DIS priority on a router
- Protect IS-IS Adjacencies with MD5 Authentication
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- Configure IS-IS area- and interface passwords
- Route Redistribution into IS-IS
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- Configure static route and connected interface redistribution into IS-IS
- Fast IS-IS Failure Detection and Convergence
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- Configure IS-IS timers
- Use BFD
Advanced Labs
- Multi-Level IS-IS Networks
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- Explain intra-area and inter-area routing
- Configure a network with multiple areas and L1/L2 routers
- Graceful Shutdown with IS-IS Overload Bit
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- Configure IS-IS overload bit or maximum metric to drain traffic from a transit router
- Build an SR-MPLS Network with IS-IS
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- Build a BGP-free MPLS core using SR-MPLS with IS-IS
- Configure IS-IS Fast Reroute Using TI-LFA
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- In a triangle network, configure the longer path as a backup path
- Using IS-IS with SRv6
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- Build a BGP-free IPv6 core using SRv6 for end-to-end transport
Troubleshooting
- Troubleshoot IS-IS Adjacencies
- This lab will include the most common mistakes that prevent an IS-IS adjacency from forming, including:
- MTU mismatch
- L1/L2 mismatch
- Area mismatch on L1 adjacency
- 3-way handshake on point-to-point links