Forming an eight-member ring setup manually using link configuration without auto-stacking

Manual configuration of a VSF stack requires the user to individually configure each switch in the stack. This process provides the best control for the user to configure VSF member number and links.

Figure 1Eight-member ring setup

Procedure

To form an eight-member ring setup as shown, do not make the connections initially. Connect the ports only after each device is fully configured.

Log in to the first device, numbered 1.
1. The default member number is 1, so no member number change is required.
2. 在提示符中,输入下列命令:
  switch# configure switch(config)# vsf member 1 switch(vsf-member-1)# link 1 1/1/25 switch(vsf-member-1)# link 2 1/1/26
3. preceding sequence of commands will configure the links for member 1.
4. Ports 25 and 26 are configured as link 1 and 2 respectively.
Log in to the second device, numbered 2.
1. Execute the following commands.
  switch# configure switch (config)# vsf member 1 switch(vsf-member-1)# link 1 1/1/25 switch(vsf-member-1)# link 2 1/1/26 switch(vsf-member-1)# exit switch(config)# vsf renumber-to 2 This will save the VSF configuration and reboot the switch. Do you want to continue (y/n)? y
2. preceding sequence of commands will configure the links on member 2.
3. The default member number is "1". The command "vsf renumber-to" changes this member number.
4. Links are configuredbeforerenumbering, and the member identifier in the interface name is "1" at this point.
5. The switch will reboot after executing the renumber command.
Physically connect member 2 to member 1 as shown in the figure.
1. This action will cause member 2 to join the stack, with member 1 as the master.
2. This result can be verified by executing "show vsf" on member 1.
Repeat steps 2 and 3, for each stack member 3 through 8.
1. Be sure to specify the member number correctly on each member.
2. If a member number conflict is detected, the member will NOT join the stack.
Once member 8 has successfully joined the stack, connect member 8 link 2 to member 1 link 1, to complete the ring.

Issue ashow vsfcommand to ensure that the ring has successfully formed.

switch# show vsf Force Autojoin : Disabled Autojoin Eligibility Status: Not Eligible MAC Address : 38:21:c7:5d:d0:c0 Secondary : Topology : Ring Status : Active Fragment Split Detection Method : None Mbr Mac Address type Status ID --- ------------------- -------------- --------------- 1 38:21:c7:5d:d0:c0 JL668A Master 2 38:21:c7:6a:10:c0 JL668A Member 3 38:21:c7:5c:15:80 JL668A Member 4 38:21:c7:5a:61:40 JL668A Member 5 38:21:c7:62:66:00 JL668A Member 6 38:21:c7:58:22:40 JL668A Member 7 38:21:c7:5a:9c:00 JL668A Member 8 38:21:c7:63:a5:00 JL668A Member

preceding steps will form an eight-member stack without a standby. To make any member the standby (for example, member 8), use the secondary command:
1. From the primary VSF member, configure member 8 as VSF secondary member:
  swtich(config)#vsf secondary-member 8This will save the configuration and reboot the specified switch. Do you want to continue (y/n)?yswitch(config)#
2. This action will reboot member 8 and it will rejoin as standby.
  switch# show vsf Force Autojoin : Disabled Autojoin Eligibility Status: Not Eligible MAC Address : 38:21:c7:5d:d0:c0 Secondary : 8 Topology : Ring Status : Active Fragment Split Detection Method : None Mbr Mac Address type Status ID --- ------------------- -------------- --------------- 1 38:21:c7:5d:d0:c0 JL668A Master 2 38:21:c7:6a:10:c0 JL668A Member 3 38:21:c7:5c:15:80 JL668A Member 4 38:21:c7:5a:61:40 JL668A Member 5 38:21:c7:62:66:00 JL668A Member 6 38:21:c7:58:22:40 JL668A Member 7 38:21:c7:5a:9c:00 JL668A Member 8 38:21:c7:63:a5:00 JL668A Standby
Alternatively, before adding member 8 to the stack, pre-configure the secondary as 8 and then renumber device 8. This action will ensure that device 8 will join the stack directly as standby.