Catalyst 2950 ko hỗ trợ Ingress Policy ???

[khungbo33]

Mình đang dùng IOS c2950-i6k2l2q4-mz.121-22.EA11.bin nhưng ko thể qos ingress được , C2950 ko hỗ trợ sao vì trên Configuration Guide của Cisco thì thấy có thể config được !
Help me ...

[khungbo33]

Thôi buồn , C2950 của mình là SI (hardware rồi) , có bỏ EI vào cũng thua !

Q. What QoS features does the 2950 standard image (SI) support?
A. The 2950 with the SI supports queuing and scheduling at egress. The 2950 with SI supports ingress classification with use of port trust states in Cisco IOS Software Release 12.1(11)EA1 and later. You can configure the ingress port to trust either class of service (CoS) or differentiated services code point (DSCP), where the default port trust state is untrusted. You can configure egress scheduling as either strict priority scheduling or weighted round-robin (WRR) scheduling.
In Cisco IOS Software Releases 12.0, SI only supports configuration on CoS priorities and WRR. In Cisco IOS Software Releases 12.1 and later, SI added these features:
* Classification
o Classification on the basis of Cisco Discovery Protocol (CDP) from a Cisco IP phone
* Output queuing and scheduling
o Strict priority scheduling
o WRR scheduling
Q. What QoS features does the 2950 enhanced image (EI) support?
A. The 2950 with the EI supports Layer 2 (L2)–Layer 4 (L4) classification at ingress with use of:
* Port trust states
* QoS access control lists (ACLs)
* Class maps and policy maps
The 2950 with EI also supports policing and marking at ingress as well as queuing and scheduling at egress. You can configure egress scheduling as either strict priority scheduling or weighted round-robin (WRR) scheduling. Refer to the Release Notes for the Catalyst 2955, Catalyst 2950, and Catalyst 2940 Switches, Cisco IOS Release 12.1(22)EA4 for hardware and software compatibility.
In Cisco IOS Software Releases 12.0, EI only supports configuration on class of service (CoS) priorities and WRR. In Cisco IOS Software Releases 12.1, EI added these features:
* Classification
o Classification on the basis of:
+ Port trust state
+ Access control lists (ACLs)
+ Policy maps
+ Cisco Discovery Protocol (CDP) from a Cisco IP phone
o Trust of CoS/differentiated services code point (DSCP)
o Ports CoS configuration
* Marking
* Policing
o Ingress policing
* Configuration of the mapping table
o CoS-to-DSCP
o DSCP-to-CoS
* Output queuing and scheduling
o Strict priority scheduling
o WRR scheduling