Users Guide

Table Of Contents
592 | External Services Interface Dell PowerConnect ArubaOS 5.0 | [User Guide
Configuring the Example NAT-mode Topology in the CLI
The CLI configuration process consists of these general tasks:
z Configuring captive portal (see Chapter 12, “Captive Portal” on page299).
z Configuring the health-check ping method.
z Configuring the ESI servers.
z Configuring the ESI group.
z Defining the redirect filter for sending traffic to the ESI server.
Configuring a Health-Check Ping
The health-check ping will be associated with an ESI group, along with servers, so that controller will send ICMP
echo requests to each server in the group and mark the server down if the controller does not hear from the server.
The health-check parameters used in this example are:
z Frequency—30 seconds. (The default is 5 seconds.)
z Retry-count—3. (The default is 2.)
z Timeout—2 seconds. (The default is 2 seconds.)
Use these CLI commands to configure a health-check ping method:
esi ping profile_name
frequency seconds
retry-count count
timeout seconds
Configuring ESI Servers
Here are the ESI server CLI configuration tasks:
z Configure server mode to be NAT.
z Configure the trusted IP address (the server IP address to which packets should be redirected).
z To redirect to a different port than the original destination port in the packet, configure an alternate
destination port.
Use these CLI commands to configure an ESI server and identify its associated attributes:
esi server server_identity
dport destination_tcp/udp_port
mode {bridge | nat | route}
trusted-ip-addr ip-addr [health-check]
Configure an ESI Group, Add the Health-Check Ping and ESI Servers
Use these CLI commands to configure an ESI server group, identify its associated ping health-check method, and
associate a server with this group:
esi group name
ping profile_name
server server_identity
Using the ESI Group in a Session Access Control List
Use these CLI commands to define the redirection filter for sending traffic to the ESI server.
ip access-list session policy
user any svc-http redirect esi-group group direction both
CLI Configuration Example 1
esi ping externalcp_ping