Tag :: Filtering

This article describes a feature for Tap Aggregation mode, which supports filtering and forwarding packets with Arista proprietary Tap Aggregation timestamp inserted after MAC address and before VLAN tag and IP header With this feature enabled, timestamped packets can be correctly parsed and be subject to load balancing of port channels and TCAM-based filtering/traffic-steering, the same way as regular packets. When this feature is enabled, regular packets without timestamp are unaffected. This feature may be useful for Arista switches that are expected to receive such timestamped packets so that load balancing, ACL, service policy and traffic policy can be applied to correctly forward and filter such packets.

Directed broadcast ACL allows inbound broadcast IP packets with source IP address as one of the permitted hosts and denies the rest of the directed broadcast traffic. Destination broadcast address of the IP packet should be the broadcast address of an interface with directed broadcast enabled. This feature gives a global command to configure sets of the permitted hosts via field-set. 

This feature enables the tunnel interfaces on the SAND platforms to perform filtering based on all options provided by DMF. 

User Defined Field (UDF) filtering enables offset-based matching. This feature supports the use of UDFs on EOS 7280R3 platforms.