- Written by Graeme Rennie
- Posted on October 20, 2022
- Updated on July 12, 2023
- 6963 Views
Internal recirculation interfaces, IR interfaces, can be used to internally loop-back packets for a second pass through the packet forwarding pipeline. This is particularly useful with Tap Aggregation because some combinations of advanced Tap Aggregation features cannot be simultaneously applied to a packet. Using an IR interface however, a user can apply multiple Tap Aggregation egress editing features, overcoming previous limitations.
- Written by Graeme Rennie
- Posted on February 15, 2022
- Updated on May 11, 2022
- 7707 Views
This article describes the Tap Aggregation MAC Address Replacement feature. This feature provides the ability to configure user-specific values to replace the destination and source MAC addresses of packets forwarded by Tap Aggregation.
- Written by Graeme Rennie
- Posted on February 22, 2021
- Updated on April 18, 2022
- 6712 Views
As of EOS-4.25.2F some advanced Tap Aggregation features require the hardware forwarding profile to be set. On EOS-4.25.2F these features are MPLS Pop and 802.1br-E/VN Tag Stripping.
- Written by Graeme Rennie
- Posted on March 31, 2017
- Updated on April 18, 2022
- 8522 Views
This article describes a feature for Tap Aggregation mode, which strips IEEE 802.1BR E-Tag and Cisco VN-Tag headers from all tagged packets received on tap interface before delivering them out of tool interfaces.