Ingress

You configure an ingress policy to perform actions that affect packet-flow.

An ingress policy is used to specify the actions to be performed at ingress on packets received by the 9920 device. An ingress policy specifies actions for packet flow.

You can create multiple listener-policy stanzas, but they do not have to be used in unique 1:1 configurations, as demonstrated in the following example to manage different traffic types: two listener policies (lp-1 and lp-2) are used to manage three traffic types.

Listener-policy lp-1 has two entries:
- One manages 802.1BR traffic.
- One manages VN-TAG traffic.

Table 1. Example: Listener-policy use for traffic types
Example 1	Example 2	Example 3
listener-policy lp-1 10 match ip access-list v4_someacl1 strip br-tag	listener-policy lp-1 20 match ip access-list v4_someacl2 strip vn-tag	listener-policy lp-2 10 match ip access-list v4_someacl1 strip vn-tag

Table 1. Example: Listener-policy use for traffic types

Example 1

Example 2

Example 3

listener-policy lp-1 10
match ip access-list v4_someacl1
strip br-tag

listener-policy lp-1 20
match ip access-list v4_someacl2
strip vn-tag

listener-policy lp-2 10
match ip access-list v4_someacl1
strip vn-tag