Deployment Scenario 1: Deploying a PE Ring in an Existing Campus Fabric Domain

Follow the instructions in SPX Construction Methods to create a Campus Fabric domain with CB and PE chains. The following steps explain how to form a PE ring after a Campus Fabric domain with PE chains comes up.

  1. The following SPX setup is based on the reference topology. This is a 3-unit CB stack. There are 2 PE chains, PEs 17–20 and PEs 21–22. To start, there is no SPX link between PE 20 and PE 21. 
    ICX7750-48F Router# show spx
T=13d9h32m53.9: 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 S 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==2/1| 18 |1/13==1/13| 19 |2/3--2/3| 20 |                 
            +----+        +----+          +----+        +----+                 

             +----+        +----+                                              
  2/1/9--1/43| 22 |2/2--2/2| 21 |                                              
             +----+        +----+
  2. The PE ID configuration in the running configuration displays two PE chains. 
    ICX7750-48F Router# show running-config | include pe-id
  pe-id 1/1/5 17 18 19 20 21
  pe-id 2/1/9 22 21
  3. Physically connect PE 20 and 21. In this case, make a connection between ports 20/1/1 and 21/1/1.
  4. Enable the ports if they are disabled. 
    ICX7750-48F Router(config)# interface ethernet 20/1/1 
ICX7750-48F Router(config-if-pe-e1000-20/1/1)# enable
ICX7750-48F Router(config)# interface ethernet 21/1/1 
ICX7750-48F Router(config-if-pe-e1000-21/1/1)# enable
ICX7750-48F Router(config-if-pe-e1000-21/1/1)# show interfaces brief ethernet 20/1/1 ethernet 21/1/1

Port    Link  State   Dupl Speed Trunk Tag Pvid Pri MAC  Name
20/1/1  Up    Forward Full 1G    None  No  1    0   cc4e.248b.11e0
21/1/1  Up    Forward Full 1G    None  No  1    0   cc4e.24b4.7f20
  5. Configure SPX ports (or an SPX LAG). In this example, SPX ports 20/1/1 and 21/1/1 are configured. 
    ICX7750-48F Router(config)# spx unit 20
ICX7750-48F Router(config-spx-unit-20)# spx-port 20/1/1
ICX7750-48F Router(config-spx-unit-20)# spx unit 21
ICX7750-48F Router(config-spx-unit-21)# spx-port 21/1/1
  6. A syslog message confirms that the PE ring has been deployed. You can also use SPX (PE) ring-related show commands to verify the status of the PE ring as described in Verification Commands: SPX PE Ring. 
    SYSLOG: <13> Nov 8 16:28:19 SPX Ring Instance 1 state change to IN-PROGRESS (CB1/1/5 - CB2/1/9). Logical block: PE20x--xPE21
SYSLOG: <13> Nov 8 16:28:19 SPX Ring Instance 1 state change to ACTIVE (CB1/1/5 - CB2/1/9). Logical block: PE20x--xPE21
  7. Once the PE ring is formed, the relevant PE ID configuration is automatically generated in the running configuration. The new PE ID configuration merges the two PE ID chains into one PE ID ring configuration. 
    ICX7750-48F Router# show running-config | include pe-id
  pe-id 1/1/5 17 18 19 20 21 22 2/1/9
  8. Review the show spx command output after the PE ring is formed. 
    ICX7750-48F Router# show spx
T=22d5h16m24.5: 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 S 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- 
            +----+        +----+        +----+        +----+        +----+   | 
                                                                             | 
                                                                    +----+   | 
                                                         2/1/9--1/43| 22 |2/2- 
                                                                    +----+
  9. Enter the write memory command to save the configuration. 
    ICX7750-48F Router# write memory 
Send "write mem" to 6 PEs: 17-22

Automatic copy to member units:  2  3
SYSLOG: <14> Nov  9 13:40:01 Security: startup-config was changed by operator from console 
Flash Memory Write (8192 bytes per dot) 
...
Copy Done.
Parent topic: Deployment Scenarios