Cisco Systems OL-4580-01 Config# ip ecmp no-prefer-ingress, Config# no ip ecmp no-prefer-ingress

Chapter 6 Configuring the Internet Protocol

Forwarding IP Subnet Broadcast Addressed Frames

The options for this global configuration mode command are as follows:

•address - Choose among alternate paths based on IP addresses. For example:

(config)# ip ecmp address

•no-prefer-ingress- Do not prefer the ingress path of a flow for its reverse egress path. By default, the ingress path for a flow is the preferred egress path. This means that the preferred interface over which to reply to a client is the interface on which the CSS originally received the request from the client.

For example:

(config)# ip ecmp no-prefer-ingress

To reset the ingress path of a flow for its preferred reverse egress path, enter:

(config)# no ip ecmp no-prefer-ingress

•roundrobin - Alternate between equal paths in roundrobin fashion. For example:

(config)# ip ecmp roundrobin

Note The CSS applies the ECMP selection algorithm for non-TCP/UDP packets (for example, ICMP) on a packet-by-packet basis. Multipath selection for TCP and UDP is performed on a per-flow basis, and all packets for a particular flow take the same path.

Forwarding IP Subnet Broadcast Addressed Frames

To enable the CSS to forward subnet broadcast addressed frames, use the

ip subnet-broadcast command.

For example:

(config)# ip subnet-broadcast

To disable forwarding of subnet broadcast addressed frames (the default behavior), enter:

(config)# no ip subnet-broadcast

	Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-4580-01		6-9