某局点反馈S6520X-54XG-EI-G 应用tap qos策略提示不支持的经验案例

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现场反馈使用S6520X-54XG-EI-G交换机正常配置tap功能，配置qos策略，在接口下调用提示调用qos策略失败，操作不支持，具体报错为：The operation is not supported。

1、 首先查看配置正常，在接口的inbound和ounbound方向调用均提示操作不支持。如下：

[H3C-TAP]traffic classifier 1

[H3C-TAP-classifier-1] if-match any

[H3C-TAP-classifier-1]#

[H3C-TAP-classifier-1] traffic behavior 1

[H3C-TAP-behavior-1]redirect monitoring-group 1

[H3C-TAP-behavior-1]#

[H3C-TAP-behavior-1]qos tap policy 1

[H3C-TAP-qospolicy-1]classifier 1 behavior 1

[H3C-TAP]interface  Ten-GigabitEthernet1/0/1

[H3C-TAP-Ten-GigabitEthernet1/0/1]qos apply tap policy 1 inbound    //入方向调用尝试

The operation is not supported. 

%Jan 13 00:39:05:191 2011 H3C-TAP QOS/4/QOS_POLICY_APPLYIF_FAIL: Failed to apply or refresh QoS policy 1 to the inbound direction of interface Ten-GigabitEthernet1/0/1. The operation is not supported.

[H3C-TAP-Ten-GigabitEthernet1/0/1]qos apply tap policy 1 outbound   //出方向调用尝试

The operation is not supported.

[H3C-TAP-Ten-GigabitEthernet1/0/1]%Jan 13 00:39:09:956 2011 H3C-TAP QOS/4/QOS_POLICY_APPLYIF_FAIL: Failed to apply or refresh QoS policy 1 to the outbound direction of interface Ten-GigabitEthernet1/0/1. The operation is not supported.

2、 报错接口未做他用，该接口下未做其他任何配置：

#

interface Ten-GigabitEthernet1/0/1

#

3、查看设备当前qos-acl资源占用情况，并无超规格情况：

===============display qos-acl resource=============== 

Interfaces: XGE1/0/1 to XGE1/0/48, HGE1/0/49 to HGE1/0/52

            FGE1/0/53, FGE1/0/54 (slot 1)

---------------------------------------------------------------------

Type             Total      Reserved   Configured Remaining  Usage

---------------------------------------------------------------------

IGS ACL          5120       200        0          4920       3%

EGS ACL          4608       0          0          4608       0%

IGS Counter      4095       100        0          3995       2%

EGS Counter      1023       0          0          1023       0%

Meter            768        100        0          668        13%

Policer Counter  4095       300        0          3795       7%

Interfaces: XGE2/0/1 to XGE2/0/48, HGE2/0/49 to HGE2/0/52

            FGE2/0/53, FGE2/0/54 (slot 2)

---------------------------------------------------------------------

Type             Total      Reserved   Configured Remaining  Usage

---------------------------------------------------------------------

IGS ACL          5120       200        0          4920       3%

EGS ACL          4608       0          0          4608       0%

IGS Counter      4095       100        0          3995       2%

EGS Counter      1023       0          0          1023       0%

Meter            768        100        0          668        13%

Policer Counter  4095       300        0          3795       7%

4、后续继续确认到S6520X-54XG-EI-G交换机在堆叠环境下不支持TAP功能，现场设备配置了IRF，命中这一限制。

在TAP策略中，流行为中必须配置重定向到监控组动作，其他报文编辑动作可以根据需求配置。当同一个流行为中配置了多个动作时，命中规则的报文会被执行所有的报文编辑动作，然后执行重定向到监控组动作。

应用TAP策略之前，需要先取消该设备上IRF端口与物理端口的绑定关系，否则TAP策略将下发失败。

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