Basically VSS and Vpc both are used to create multi chasis etherchannel
1) vPC is Nexus switch specific feature,however,VSS is created using 6500 series switches
2) In VSS there will be single control plane for both the switches, where as in vPC there will be separate control plane for every switch.
3) VSS can support L3 port-channels across multiple chassis,however, vpc is used for L2 port-channels only.
4) VSS supports both PAgP and LACP,however, VPC only supports LACP.
5) VSS mainly used for campus environment whereas VPC is used for Data Center environment.
6) In VSS, only one logical switch has be managed from management and configuration point of view.That means, when the switches are put into VSS, now there is only one IP which is used to access the switch. They are not managed as separate switches and all configuration are done on active switch.
-They are managed similar to what we do in stack in 3750 switches,however, in vPC, the switches are managed separately. That means both switches will have separate IP by which they can be accessed,monitored and managed. Virtually they will appear a single logical switch from port-channel point of view only to downstream devices.
-As i said, VSS is single management and single configuration, we can not use them for HSRP active and standby purpose because they are no longer 2 seperate boxes. Infact HSRP is not needed, right? one single IP can be given to L3 interface and that can be used as gateway for the devices in that particular vlan and we will still have redundancy as being same ip assigned on a group of 2 switches.
- If one switch fails, another can take over.,however, in vPC as i mentioned above devices are separately configured and managed, we need to configure gateway redundancy same as in traditional manner.
1) vPC is Nexus switch specific feature,however,VSS is created using 6500 series switches
2) In VSS there will be single control plane for both the switches, where as in vPC there will be separate control plane for every switch.
3) VSS can support L3 port-channels across multiple chassis,however, vpc is used for L2 port-channels only.
4) VSS supports both PAgP and LACP,however, VPC only supports LACP.
5) VSS mainly used for campus environment whereas VPC is used for Data Center environment.
6) In VSS, only one logical switch has be managed from management and configuration point of view.That means, when the switches are put into VSS, now there is only one IP which is used to access the switch. They are not managed as separate switches and all configuration are done on active switch.
-They are managed similar to what we do in stack in 3750 switches,however, in vPC, the switches are managed separately. That means both switches will have separate IP by which they can be accessed,monitored and managed. Virtually they will appear a single logical switch from port-channel point of view only to downstream devices.
-As i said, VSS is single management and single configuration, we can not use them for HSRP active and standby purpose because they are no longer 2 seperate boxes. Infact HSRP is not needed, right? one single IP can be given to L3 interface and that can be used as gateway for the devices in that particular vlan and we will still have redundancy as being same ip assigned on a group of 2 switches.
- If one switch fails, another can take over.,however, in vPC as i mentioned above devices are separately configured and managed, we need to configure gateway redundancy same as in traditional manner.
Is this two Protocols require HSRP .... ?
ReplyDeletethis is great post..
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