Alteon Application Switch Operating System Application Guide
Health Checking
Document ID: RDWR-ALOS-V2900_AG1302
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The following LDAP/S-specific arguments are available:
•
LDAPS—Specifies whether to perform a LDAP (disabled) or LDAPS (enabled) health check.
•
Username and Password—Specifies the login user name and password when authentication is
required.
•
Base Distinguish Name—Specifies the domain component of the root Distinguish Name.
You can configure an Inherit value for Username, Password, and Base Distinguish Name arguments
to allow configuration using the group content. The group content includes all required parameters
in the LDAP message format:
cn=<username>,dc=<base-part1>,dc=<base-part2>,dc=<base-part3>:<password>.
Note:
If the Username, Password and Base Distinguish Name are set to Inherit, and the group
content is empty, the health check performed for that group is TCP.
Pre-defined ldap and ldaps health checks are available for simple LDAP and LDAPS service
monitoring. The health checks have all the parameters set to Inherit, allowing definition using the
group content.
The Alteon LDAP health check is supported for LDAP version 2 and 3. The LDAP version used is
defined per Alteon by the global flag
cfg/slb/advhc/ldapver
.
Windows Terminal Server Health Checks
Windows Terminal Services (WTS), renamed Remote Desktop Services in Windows 2008 R2, is a
component of Microsoft Windows (both server and client versions) that allows a user to access
applications and data on a remote computer over a network, using the Remote Desktop Protocol
(RDP).
The WTS health check
attempts to open a connection to the TS server. You can define a user
name to be used in the TS cookie. By default, the user name Administrator is used. An Inherit value
can be configured to allow the user name configuration via group content.
A pre-defined wts health check is available for simple WTS service monitoring. The health check has
the Username parameter set to Inherit, allowing configuration using the group content. The
destination port is set to the standard WTS port (3389).
ARP Health Checks
The Address Resolution Protocol (ARP) is the TCP/IP protocol that resides within the Internet layer.
ARP resolves a physical address from an IP address. ARP queries computers on the local network for
their physical addresses. ARP also maintains IP-to-physical address pairs in its cache memory. In
any IP communication, the ARP cache is consulted to see if the IP address of the computer or the
router is present in the ARP cache. The corresponding physical address is used to send a packet.
A pre-defined arp health check is available.
DHCP Health Checks
The DHCP health check monitors the service by sending a DHCP INFORM or REQUEST message and
expecting responses.
You can specify the following:
•
DHCP message type—Send an INFORM or REQUEST message
•
DHCP message source port—Use a random or standard port (68 for IPv4 and 546 for IPv6)
An Inherit value can be configured for both parameters to allow configuration using the group
content.
The group content supports the following options:
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