Deployment Scenario 4: Replacing a PE in an Existing PE Ring
Follow this procedure when a PE in an existing PE ring must be replaced. In this example, PE 22 is replaced with a new PE unit.
- Suppose that you are working with the following PE ring topology.
ICX7750-48F Router# show spx T=22d6h45m2.4: alone: standalone, D: dynamic cfg, S: static ID Type Role Mac Address Pri State Comment 1 S ICX7750-48XGF active cc4e.24d0.3500 128 local Ready 2 S ICX7750-48XGC standby 609c.9f1f.df00 128 remote Ready 3 S ICX7750-48XGF member cc4e.246e.d580 5 remote Ready 17 S ICX7450-48GF spx-pe cc4e.246d.1178 N/A remote Ready 18 S ICX7450-48P spx-pe cc4e.246d.22b8 N/A remote Ready 19 S ICX7250-48P spx-pe cc4e.24b4.32e8 N/A remote Ready 20 S ICX7450-24P spx-pe cc4e.248b.11e0 N/A remote Ready 21 S ICX7250-24P spx-pe cc4e.24b4.7f20 N/A remote Ready 22 D ICX7250-48 spx-pe cc4e.24b4.4350 N/A remote Ready active standby +---+ +---+ +---+ -3/1| 1 |3/4--3/1| 3 |3/4--3/1| 2 |3/4- | +---+ +---+ +---+ | | | |-------------------------------------| +----+ +----+ +----+ +----+ +----+ 1/1/5==2/1| 17 |3/1--3/1| 18 |2/3--2/1| 19 |2/3--2/3| 20 |1/1--1/1| 21 |2/2- +----+ +----+ +----+ +----+ +----+ | | +----+ | 1/1/13--2/1| 22 |2/2- +----+ - Physically remove the link between PE 22 and PE 21 and the link between PE 22 and
the CB. In this case, cables are removed from ports 22/2/2 and 22/2/1. The ports go
down, the PE ring breaks, and PE 22 is removed from the PE ring.
ICX7750-48F Router# show spx T=22d8h47m12.0: alone: standalone, D: dynamic cfg, S: static ID Type Role Mac Address Pri State Comment 1 S ICX7750-48XGF active cc4e.24d0.3500 128 local Ready 2 S ICX7750-48XGC standby 609c.9f1f.df00 128 remote Ready 3 S ICX7750-48XGF member cc4e.246e.d580 5 remote Ready 17 S ICX7450-48GF spx-pe cc4e.246d.1178 N/A remote Ready 18 S ICX7450-48P spx-pe cc4e.246d.22b8 N/A remote Ready 19 S ICX7250-48P spx-pe cc4e.24b4.32e8 N/A remote Ready 20 S ICX7450-24P spx-pe cc4e.248b.11e0 N/A remote Ready 21 S ICX7250-24P spx-pe cc4e.24b4.7f20 N/A remote Ready active standby +---+ +---+ +---+ -3/1| 1 |3/4--3/1| 3 |3/4--3/1| 2 |3/4- | +---+ +---+ +---+ | | | |-------------------------------------| +----+ +----+ +----+ +----+ +----+ 1/1/5==2/1| 17 |3/1--3/1| 18 |2/3--2/1| 19 |2/3--2/3| 20 |1/1--1/1| 21 |2/2- +----+ +----+ +----+ +----+ +----+ - Bring up the new replacement unit as a PE.
ICX7250-48 Router> enable No password has been assigned yet... ICX7250-48 Router# configure terminal ICX7250-48 Router(config)# spx pe-enable Enter provisional PE mode. CLI is limited to spx unit 1. After finishing all configuration, please "write memory" and reload this unit to be a PE. [Provisional-PE]ICX7250-48 Router(config)# show running-config Current configuration: ! ver 08.0.50B14T213 ! spx pe-enable spx unit 1 module 1 icx7250-48-port-management-module module 2 icx7250-sfp-plus-8port-80g-module spx-port 1/2/1 |___These are default spx-ports. Change them spx-port 1/2/3 | if required. One spx-port connects to the CB ! and another connects to PE 21. end [Provisional-PE]ICX7250-48 Router(config)# spx unit 1 [Provisional-PE]ICX7250-48 Router(config-spx-unit-1)# no spx-port1/2/3 spx-port 1/2/3 is removed [Provisional-PE]ICX7250-48 Router(config-spx-unit-1)# spx-port 1/2/2 [Provisional-PE]ICX7250-48 Router(config-spx-unit-1)# show running-config Current configuration: ! ver 08.0.50B14T213 ! spx pe-enable spx unit 1 module 1 icx7250-48-port-management-module module 2 icx7250-sfp-plus-8port-80g-module spx-port 1/2/1 spx-port 1/2/2 ! end
- Reconnect the cable between the PE 22 replacement and the CB and between PE 22 and
PE 21, and bring up the ports.
[Provisional-PE]ICX7250-48 Router(config-spx-unit-1)# show interfaces brief ethernet 1/2/1 ethernet 1/2/2 Port Link State Dupl Speed Trunk Tag Pvid Pri MAC Name 1/2/1 Disable None None None None No 1 0 cc4e.24b4.4381 1/2/2 Up Forward Full 10G None No 1 0 cc4e.24b4.4382 [Provisional-PE]ICX7250-48 Router(config-spx-unit-1)# [Provisional-PE]ICX7250-48 Router(config-spx-unit-1)# int e 1/2/1 [Provisional-PE]ICX7250-48 Router(config-if-spx-e10000-1/2/1)# enable [Provisional-PE]ICX7250-48 Router(config-if-spx-e10000-1/2/1)# show interfaces brief ethernet 1/2/1 ethernet 1/2/2 Port Link State Dupl Speed Trunk Tag Pvid Pri MAC Name 1/2/1 Up Forward Full 10G None No 1 0 cc4e.24b4.4381 1/2/2 Up Forward Full 10G None No 1 0 cc4e.24b4.4382 [Provisional-PE]ICX7250-48 Router(config-if-spx-e10000-1/2/1)#
- Verify that the SPX ports on the CB and PE 21 are up.
- Save the configuration, and reload the PE 22 replacement.
- After the reload, the PE replacement unit becomes part of the SPX domain.
ICX7750-48F Router# show spx T=22d9h2m39.6: alone: standalone, D: dynamic cfg, S: static ID Type Role Mac Address Pri State Comment 1 S ICX7750-48XGF active cc4e.24d0.3500 128 local Ready 2 S ICX7750-48XGC standby 609c.9f1f.df00 128 remote Ready 3 S ICX7750-48XGF member cc4e.246e.d580 5 remote Ready 17 S ICX7450-48GF spx-pe cc4e.246d.1178 N/A remote Ready 18 S ICX7450-48P spx-pe cc4e.246d.22b8 N/A remote Ready 19 S ICX7250-48P spx-pe cc4e.24b4.32e8 N/A remote Ready 20 S ICX7450-24P spx-pe cc4e.248b.11e0 N/A remote Ready 21 S ICX7250-24P spx-pe cc4e.24b4.7f20 N/A remote Ready 22 D ICX7250-48 spx-pe cc4e.24b4.4350 N/A remote Ready active standby +---+ +---+ +---+ -3/1| 1 |3/4--3/1| 3 |3/4--3/1| 2 |3/4- | +---+ +---+ +---+ | | | |-------------------------------------| +----+ +----+ +----+ +----+ +----+ 1/1/5==2/1| 17 |3/1--3/1| 18 |2/3--2/1| 19 |2/3--2/3| 20 |1/1--1/1| 21 |2/2- +----+ +----+ +----+ +----+ +----+ | | +----+ | 1/1/13--2/1| 22 |2/2- +----+