Increase the Number of SPB Nodes per Area

About this task

If you enable this boot config flag, it decreases the scaling limits for the following features:

• Switched UNI (S-UNI) endpoints

• Layer 2 and Layer 3 I-SIDs

• IP Multicast over Fabric Connect local streams

• Private VLANs

The scaling numbers for the following items are limited by the use of a shared hardware resource, and thus they affect one another:

• the number of SPB nodes per area

• the number of SPB nodes that send IP Multicast streams that the local BEB receives

• local SPB services:

  • Layer 2 I-SIDs

  • Layer 3 I-SIDs

  • IP Multicast over Fabric Connect remote IP Multicast stream data I-SIDs

  • I-SID mirroring instances

1. Enter Global Configuration mode:

   enable

   configure terminal

2. Increase the number of supported SPB nodes per area:

   boot config flags spbm-node-scaling

3. Verify the configuration:

   show boot config flags

4. Save the configuration:

   save config

5. Restart the switch for the change to take effect:

   reset

Example

Enable the boot config flag to increase the number of SPB nodes per area that switch supports.

Switch:1>en
Switch:1#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Switch:1(config)#boot config flags spbm-node-scaling
Switch:1(config)#save config
Switch:1(config)#reset

Warning: Please save the configuration and reboot the switch
         for this configuration to take effect.

Switch:1#show boot config flags
flags advanced-feature-bandwidth-reservation low
flags block-snmp false
flags debug-config false
flags debugmode false
flags dvr-leaf-mode false
flags enhancedsecure-mode false
flags factorydefaults false
flags flow-control-mode true
flags ftpd true
flags hsecure false
flags ipv6-egress-filter true
flags ipv6-mode false
flags logging true
flags macsec false
flags nni-mstp false
flags reboot true
flags spanning-tree-mode mstp
flags spbm-config-mode true
flags spbm-node-scaling true
flags sshd true
flags syslog-rfc5424-format true
flags telnetd true
flags tftpd true
flags trace-logging false
flags urpf-mode true
flags verify-config true
flags vrf-scaling true
flags vxlan-gw-full-interworking-mode false