The mirrored traffic contains routes that are restricted by the ACL

Created: Jul 27, 2019 08:23:03Latest reply: Jul 27, 2019 08:24:59 92 2 0 0
  Rewarded Hi-coins: 0 (problem resolved)

I configure traffic-filter on the downstream interface of s5700 to limit the traffic. After the configuration, the routes are blocked. However, when I observe the mirrored traffic on the port, there are still routes that are restricted by the ACL. Why?


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Popeye_Wang
Admin Created Jul 27, 2019 08:23:59 Helpful(1) Helpful(1)

Hi, Sprout,
It’s normal. The outbound packet processing flow of the switch is as follows: The interface caches -> L2&L3 -> mirroring -> ACL/QOS. As shown in the process, the outbound interface mirroring can only reflect the modification of Layer 2 and Layer 3 forwarding packets, but cannot reflect the modification of the outbound ACL/QoS to the packets.
If you want to view the traffic after the ACL is configured, you can mirror the incoming traffic of the next hop device.
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  • convention:

All Answers
Popeye_Wang
Popeye_Wang Admin Created Jul 27, 2019 08:23:59 Helpful(1) Helpful(1)

Hi, Sprout,
It’s normal. The outbound packet processing flow of the switch is as follows: The interface caches -> L2&L3 -> mirroring -> ACL/QOS. As shown in the process, the outbound interface mirroring can only reflect the modification of Layer 2 and Layer 3 forwarding packets, but cannot reflect the modification of the outbound ACL/QoS to the packets.
If you want to view the traffic after the ACL is configured, you can mirror the incoming traffic of the next hop device.
  • x
  • convention:

Sprout
Sprout Created Jul 27, 2019 08:24:59 Helpful(0) Helpful(0)

Posted by Popeye_Wang at 2019-07-27 08:23 Hi, Sprout,It’s normal. The outbound packet processing flow of the switch is as follows: The interf ...
Thank you for your explanation.
  • x
  • convention:

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