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Spirent Test Center Series: Part 2 – OSPF, BGP and Running Traffic

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Part 2 of our Spirent Test Center Series will cover what I find to be the most common use cases for configuring the Spirent Test Center for proof of concept type labs for OSPF, BGP and also for traffic that will run between the OSPF and BGP advertised prefixes. In the overall series we will call this one, “Example 1“.

  • Example 1:
    • OSPF
    • BGP
    • Traffic Between OSPF and BGP Advertised Prefixes

Example 1: OSPF & BGP

We will do this example in 3 parts. First – get the OSPF up between R1 and the Spirent Test Center and advertise prefixes. 2nd – get BGP up between R2 and the Spirent Test Center and advertise prefixes. Finally we will create traffic between an OSPF advertised prefix and a BGP advertised prefix.

Spoilers

  1. For OSPF – click “None” for Topology Type. Spirent Test Center OSPF topology
  2. For BGP – be aware of scalability mode you are in. Spirent Test Center BGP Discard Updates setting
  3. For Traffic between advertised prefixes – I like creating a smaller set of host (/32) prefixes for the traffic and using the bulk prefixes for background or churn. Spirent Test Center Traffic with Host Prefixes

OSPF

OSPF: YouTube Detailed Timing (14 minutes)

For the YouTube I list below the varying timestamps.

  • Overview: start – 1:27
  • OSPF Example 1: Add OSPF to Existing Device (1:28-9:37)
    • Enable OSPF to Run on Existing Device (2:13-4:52)
    • Verify OSPF Neighbor Up (4:53-6:32)
    • Advertise 10 Prefixes (6:33-9:00)
    • Verify, on R1, prefixes are received (9:01-9:37)
  • OSPF Example 2: Create a New Device and Make it an OSPF Router (9:38-
    • Create a new device on vlan 12, configure it to be OSPF, advertise 10 prefixes (10:10-12:05)
    • Notice the OSPF Neighbor Isn’t coming up (12:06-12:45)
    • Fix (12:46-12:52)
    • OSPF Up (12:53-13:08)
    • Verify, on R1, prefixes are received (13:09-13:39)

OSPF: YouTube

BGP

BGP: YouTube Detailed Timing (9 minutes)

For the YouTube I list below the varying timestamps.

  1. Overview: start – 1:55
  2. Enable BGP to run on Existing Device (1:56-3:30)
  3. Note about BGP Scalability mode (3:31-4:56)
  4. Start BGP Neighbor (4:57-5:30)
  5. Verify BGP neighbor relationship established (5:31-6:11)
  6. Advertise 10 prefixes (6:12-7:56)
  7. Verify, on R2, prefixes are received (7:57-8:20)
  8. Wrap up (8:21-9:00)

BGP: YouTube

Spirent Test Center Configuring BGP neighbors and advertises prefixes

Traffic Between OSPF and BGP Advertised Prefixes

Traffic Between: YouTube Detailed Timing

For the YouTube I list below the varying timestamps.

  1. Overview: start – 1:55
  2. Start to create traffic stream (1:56-5:21)
  3. Hit a pet peeve (from experience) of Fish’s (5:22-6:42)
  4. Fish explains her preferred way of doing this (6:43-8:27)
  5. On STC configure OSPF to advertise a host prefix (8:28-9:30)
  6. Verify, on R1, that this new prefix is there (9:31-10:08)
  7. On STC configure BGP to advertise a host prefix (10:09-10:57)
  8. Verify, on R2, that this new prefix is there (10:58-11:18)
  9. Fish explains a little more about this preferred way of doing this (11:19-12:25)
  10. Create a stream between the two /32 advertised host prefixes (12:26-14:16)
  11. Start the stream (14:17-15:57)
  12. Wrap up (15:57–16:37)

Traffic Between: YouTube

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Categories: Fun in the Lab, Spirent

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