Cisco WS-X6708-10G-3CXL= - 10 Gigabit Ethernet Module Manual de usuario descargar pdf (Pagina 5)

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Figure 2. Components of Cisco Virtual Switching System

From data-plane and traffic-forwarding perspectives, both switches in the Cisco Catalyst 6500 Series Virtual

Switching System 1440 actively forward traffic. The PFC on the active virtual switch supervisor engine performs

central forwarding lookups for all traffic that ingresses the active virtual switch, whereas the PFC on the standby

virtual switch supervisor engine performs central forwarding lookups for all traffic that ingresses the standby virtual

switch.

Additionally, all DFCs across the entire Cisco Virtual Switching System can also simultaneously perform packet

lookups. As a result, the Cisco Virtual Switching System in aggregate offers greater than 800 Mpps of IPv4 lookup

performance. Because the switch fabrics of both switches are also in an active state, the Cisco Virtual Switching

System in aggregate has the switch fabric capacity of 1440 Gbps, or 1.44 Tbps.

Centralized Management

The fundamental design of a Cisco Catalyst 6500 Series Virtual Switching System 1440 allows for the centralized

management of all network and device resources, including Layer 3 protocols (Open Shortest Path First [OSPF],

Enhanced Interior Gateway Routing Protocol [EIGRP], Border Gateway Protocol [BGP], and so on) and Layer 2

protocols (Spanning Tree Protocol, Unidirectional Link Detection Protocol [UDLD], Flow Contro l, LACP, and so on). A

single supervisor engine in the Cisco Virtual Switching System is elected as the central management point for the

entire system.

The chassis containing the supervisor engine acting as the single management point is referred to as th e active

virtual switch. The peer chassis is referred to as the standby virtual switch. The single supervisor engine acting as the

single management point is referred to as the active supervisor engine, and the peer supervisor engine in the standby

virtual switch chassis is referred to as the hot-standby supervisor engine. You can verify this setup with the following

commands:

vss#show switch virtual

Switch mode : Virtual Switch

Virtual switch domain number : 200

Local switch number : 1

Local switch operational role: Virtual Switch Active

Peer switch number : 2

Peer switch operational role : Virtual Switch Standby

vss#show switch virtual redundancy

My Switch Id = 1

Peer Switch Id = 2

Last switchover reason = none

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Cisco WS-X6708-10G-3CXL= - 10 Gigabit Ethernet Module Manual de usuario Pagina 5