Cisco 4510R - Catalyst Switch Bedienungsanleitung PDF herunterladen (Seite 8)

Per−VLAN Spanning Tree (PVST+)•

Rapid−PVST•

PortFast/UplinkFast/BackboneFast•

Bridge Protocol Data Unit (Bpdu) guard and filtering•

Voice VLAN•

Port security•

Unicast MAC filtering•

Access Control List (ACL) (VLAN Access Control List [VACLS], Port Access Control List

[PACLS], Receive Access Control List [RACLS])

•

QoS (Dynamic Buffer Limiting [DBL])•

Multicast storm control/broadcast storm control•

What is not synchronized?

These are not synchronized between the active and standby supervisors:

All Layer 3 protocols on Catalyst 4500 Series Switches (Switch Virtual Interfaces)•

Cisco NonStop Forwarding (NSF) works with SSO to minimize the amount of time that a Layer 3 network is

unavailable after a supervisor engine switchover by continuing to forward IP packets. The reconvergence of

Layer 3 routing protocols (Border Gateway Protocol [BGP], Enhanced Interior Gateway Routing Protocol

[EIGRP], Open Shortest Path First [OSPF] v2, and Intermediate System−to−Intermediate System [IS−IS]) is

transparent to the user and occurs automatically in the background. The routing protocols recover routing

information from neighbor devices and rebuild the Cisco Express Forwarding (CEF) table. Refer to

Configuring NSF with SSO Supervisor Engine Redundancy for more information.

SSO is compatible with this list of features. However, the protocol database for these features is not

synchronized between the redundant and active supervisor engines.

802.1Q tunneling with Layer 2 Protocol Tunneling•

Baby giants•

Jumbo frame support•

Cisco Discovery Protocol (CDP)•

Flood blocking•

Unidirectional Link Detection Protocol (UDLD)•

Switched Port Analyzer (SPAN)/Remote Switch Port Analyzer (RSPAN)•

NetFlow•

Configuration

Issue these commands in order to configure the redundancy in SSO mode:

Switch#configure terminal

Switch(config)#redundancy

Switch(config−red)#mode sso

Verification of Redundancy

These commands verify supervisor redundancy on the Catalyst 4500 Series Switches:

show moduleThis verifies whether the redundant Supervisor module exists and is in standby mode.•

show redundancyThis verifies the redundancy facility information.

Switch#show redundancy

Redundant System Information :

•

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