06-24-2019 01:36 AM
Hi Team Customer is having 2 chassis of 6509-E and have dual sup 2T in each of the chassis. Now customer want that all the four SUP 2T should be part of VSS. Is this scenario possible because as per Cisco documentations "VSS mode does not support supervisor engine redundancy within a chassis.” However the below links also talk about the "VSS Quad-Sup Up link Forwarding". which contradicts with the above statement. https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/15-1SY/config_guide/sup2T/15_1_sy_swcg_2T/virtual_switching_systems.html
Below are the details of the existing setup.
Solved! Go to Solution.
06-24-2019 06:24 AM
Hello,
to take advantage of the feature Quad Sup VSS uplinks you need to follow an interconnection schema that has one VSL link between each possible pair of supervisors. Additional VSL links taken from linecards can be added if needed.
see the whitepaper below
on page 15 there is a figure and explanation
© 2012Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 15of 55Figure 8. Quad-Sup Uplink Forwarding
VSL Configuration
Quad-Sup Uplink Forwarding VSL design using all 10 Gigabit ports on the supervisor modules:
●Maintains 20 Gbps VSL bandwidth in the event of a supervisor failure
●Maintains at least one locally attached VSL port to the active supervisor, in the event of a supervisor module failure
●Requires no additional line cards
If additional bandwidth is needed for the VSL, additional 10 Gigabit ports from supported line cards can be used. Up to eight ports per port channel can be added, just like any other port channel interface.
Hope to help
Giuseppe
06-24-2019 02:02 AM
06-24-2019 03:03 AM
06-24-2019 03:42 AM
06-24-2019 06:24 AM
Hello,
to take advantage of the feature Quad Sup VSS uplinks you need to follow an interconnection schema that has one VSL link between each possible pair of supervisors. Additional VSL links taken from linecards can be added if needed.
see the whitepaper below
on page 15 there is a figure and explanation
© 2012Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information.Page 15of 55Figure 8. Quad-Sup Uplink Forwarding
VSL Configuration
Quad-Sup Uplink Forwarding VSL design using all 10 Gigabit ports on the supervisor modules:
●Maintains 20 Gbps VSL bandwidth in the event of a supervisor failure
●Maintains at least one locally attached VSL port to the active supervisor, in the event of a supervisor module failure
●Requires no additional line cards
If additional bandwidth is needed for the VSL, additional 10 Gigabit ports from supported line cards can be used. Up to eight ports per port channel can be added, just like any other port channel interface.
Hope to help
Giuseppe
06-24-2019 10:37 PM
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