wom server-discovery¶

wom server-discovery(1) BIG-IP TMSH Manual wom server-discovery(1)

NAME
server-discovery - Configures the dynamic discovery of servers that can be reached through the local endpoint
and the routes to reach them.

MODULE
wom

SYNTAX
Configure the server-discovery component within the wom module using the syntax in the following sections.

MODIFY
modify server-discovery
options:
auto-save [disabled | enabled]
description [string]
filter-mode [exclude | include]
idle-time-limit [integer]
ip-ttl-limit [integer]
max-server-count [integer]
min-idle-time [integer]
min-prefix-length-ipv4 [integer]
min-prefix-length-ipv6 [integer]
mode [disabled | enabled]
rtt-threshold [integer]
subnet-filter [add | delete | none | replace-all-with] {
[ip address]
}
time-unit [days | hours | minutes]

DISPLAY
list server-discovery
show running-config server-discovery
options:
all-properties
auto-save
current-module
description
filter-mode
idle-time-limit
ip-ttl-limit
max-server-count
min-idle-time
min-prefix-length-ipv4
min-prefix-length-ipv6
mode
non-default-properties
one-line
rtt-threshold
subnet-filter
time-unit

DESCRIPTION
You can use the server-discovery component to configure the dynamic discovery of servers and the routes to
reach them through the local endpoint. The local endpoint advertises these routes to any remote endpoints to
which it is connected.

EXAMPLES
list server-discovery all-properties

Displays the settings for dynamic discovery of advertised routes.

modify server-discovery mode disabled

Disables the dynamic discovery of advertised routes.

OPTIONS
auto-save
Specifies whether the system automatically saves the subnets that it discovers that can reached through
the local endpoint. The default value is enabled.

description
User defined description.

filter-mode
Specifies whether the subnets you add using the attribute subnet-filter are excluded from or included in
the discovery of advertised routes. If you specify include, and do not specify any IP addresses, no
subnets are discovered. The default is exclude with no IP addresses specified, which means that all
advertised routes that conform to the specified attributes are discovered.

idle-time-limit
Specifies the maximum length of time a route can be idle without being removed from discovery. The
default value is 0. Use the attribute time-unit to set the unit of measure. Use the attribute min-idle-
time to set the minimum length of idle time.

ip-ttl-limit
Specifies the number of network segments on which a packet is allowed to travel before the route is
removed from discovery. The more routers a packet travels through, the smaller the ip ttl value is. The
range is 0 to 255. The default value is 5.

max-server-count
Specifies the highest number of servers the system discovers before it stops looking. The default value
is 50.

min-idle-time
Specifies the minimum length of time a route must be idle before being removed from discovery. The
default value is 0, which indicates that idle time is not considered in discovery. Use the attribute
time-unit to set the unit of measure. Use the attribute idle-time-limit to set the maximum length of idle
time.

min-prefix-length-ipv4
Specifies the minimum prefix length for route aggregation in IPV4 networks. The range is 0 to 32. The
default value is 32.

min-prefix-length-ipv6
Specifies the minimum prefix length for route aggregation in IPV6 networks. The range is 0 to 128. The
default value is 128.

mode Enables or disables the dynamic discovery of servers that can be reached through the local endpoint. For
server discovery to take place, the setting mode of the component wom endpoint-discovery must not be set
to disabled.

rtt-threshold
Specifies that the system does not add servers it discovers with a round-trip time greater than this
value, in milliseconds. The default value is 10.

subnet-filter
Specifies the IP addresses of the subnets to include in or exclude from the discovery of advertised
routes, depending on the setting you selected for the attribute filter-mode. The default is none. If you
selected include for the attribute filter-mode, and do not specify any IP addresses, no subnets are
discovered.

time-unit
Specifies the unit of measure (days, hours, or minutes) for the length of idle time specified using the
attributes idle-time-limit and min-idle-time.

SEE ALSO
list, modify, show, tmsh, wom advertised-route, wom endpoint-discovery, wom local-endpoint, wom remote-route

COPYRIGHT
No part of this program may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying, recording, or information storage and retrieval systems, for any purpose
other than the purchaser's personal use, without the express written permission of F5 Networks, Inc.

BIG-IP 2012-04-11 wom server-discovery(1)