What is VSS mode?

What is VSS mode?

Introduction. The Cisco Catalyst 6500 Series Virtual Switching System (VSS) allows the clustering of two or more physical chassis together into a single, logical entity. This technology allows for enhancements in all areas of network design, including high availability, scalability, management, and maintenance.

What is a VSS pair?

The Virtual Switching System (VSS) allows two Cisco Catalyst 6500 or 4500 chassis to bond together so that is seen as a single virtual swich to the rest of the network. Configure a virtual switch domain on both switches and configure one switch as “switch 1” and the other one as “switch 2”.

What is Supervisor Engine Cisco switch?

Supervisor Engine is a module that is installed in the Cisco Chassis-based Catalyst Switches or Routers. Supervisor engine contains nearly all the same components of a fixed Cisco Switches or Routers.

What is VSL in Cisco switch?

The virtual switching system uses VSL to communicate system and protocol information between the peer chassis and to carry data traffic between the two chassis. Both chassis perform packet forwarding for ingress traffic on their local interfaces.

How can I check my VSS switch status?

Verification. 1) To displays the virtual switch domain number, and the switch number and role for each of the switches you can use “show switch virtual” command. 3) To displays the role, switch number, and priority for each of the switch in the VSS use “show switch virtual role” command.

How do I check my VSS status?

To check the VSS provider/writer status.

1. Open a command window.
2. At the command prompt, type vssadmin list providers, and then press ENTER.
3. Confirm that Microsoft VSS provider is listed as:
4. Type vssadmin list writers at the command prompt, and then press ENTER.
5. Confirm that all the VSS writers are showing:

What is the benefit of VSS?

VSS increases operational efficiency by simplifying the network, reducing switch management overhead by at least 50 percent. – Single configuration file and node to manage. Removes the need to configure redundant switches twice with identical policies.

What does a Cisco supervisor Module do?

The active Supervisor engine module takes care of all Catalyst operational details and provides the CLI for the administrator. The active module, therefore, takes care of the Spanning-Tree Protocol, SNMP, CLI, Telnet, VLAN assignments, VTP, CDP, and other aspects.

What is SUP card in Cisco switch?

The supervisor module is the module that is the brains behind the whole switching operations. Its usually found in chassis based switches, nowadays, it handles everything, including routing and switching (older models had them separated.)

What is VSL in VSS?

WHY VSL IS REQUIRED: For the two chassis of the VSS to act as one network element, they need to share control information and data traffic. The VSL gives control traffic higher priority than data traffic so that control messages are never discarded.

Is VSS active active?

the VSS standby supervisor engine in the other chassis are ICA supervisor engines. If the VSS active ICA supervisor engine crashes, a switchover to the standby ICA supervisor engine in other chassis occurs. Both VSS chassis remain active. All switching modules remain active.