Cisco Systems 2960 Manual De Usuario

Descargar
Página de 1004
 
A-5
Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
Appendix A      Recommendations for Upgrading a Catalyst 2950 Switch to a Catalyst 2960 Switch
Feature Behavior Incompatibilities
Feature Behavior Incompatibilities
Some features behave differently on the Catalyst 2950 and Catalyst 2960 switches, and some features 
are not supported on the Catalyst 2960 switch:
  •
Access control lists (ACLs)
Even though the command syntax is the same on the Catalyst 2960 switch and on the Catalyst 2950 
switch, the semantics of the IP and the MAC ACL between the two platforms differ. For example, 
you can apply MAC ACLs for IP packets on the Catalyst 2950 switch, but on the Catalyst 2960 
switch:
  –
You cannot apply MAC ACLs to IP packets. 
  –
You cannot apply any ACLs for IPv6 frames.
  –
With MAC ACLs, an Ethertype of Appletalk is not supported. 
  •
QoS
The Catalyst 2960 switch uses different port hardware than the Catalyst 2950 switch, and more QoS 
features are offered on the Catalyst 2960 switch. For example, the Catalyst 2950 switch supports 
WRR scheduling, whereas the Catalyst 2960 switch supports SRR scheduling. Also, you must 
enable QoS globally on the Catalyst 2960 switch, whereas QoS is enabled by default on the Catalyst 
2950 switch. For more information, se
RSPAN
3
You have to specify one port as the reflector port with 
this global configuration command:
monitor session session_number destination remote 
vlan
 vlan-id reflector-port interface-id
Because of advanced hardware in the 
Catalyst 2960 switch, you do not need to 
configure a reflector port.
The Catalyst 2960 switch accepts the monitor 
session
 session-number destination remote vlan 
vlan-id reflector-port interface-id command, 
and this message appears:
Note: Reflector port configuration is not 
required on this platform, ignoring the 
reflector port configuration
STP
The Catalyst 2950 switch supports cross-stack 
UplinkFast on GBIC
4
 interfaces. You enable the stack 
port with this interface configuration command:
spanning-tree stack-port
The Catalyst 2960 switch does not support 
GBIC interfaces.
It rejects the command, and this message 
appears:
Switch(config-if)# spanning-tree 
stack-port
                                ^
%Invalid input detected at ‘^’ marker.
1.
IGMP = Internet Group Management Protocol
2.
QoS = quality of service
3.
RSPAN = Remote Switched Port Analyzer
4.
GBIC = Gigabit Interface Converter
Table A-1
Catalyst 2950 and 2960 Switch Configuration Incompatibilities (continued)
Feature
Catalyst 2950 Switch Command and Explanation
Result on the Catalyst 2960 Switch