Verifying gslb operation, Configuring client site preferences – Nortel Networks WEB OS 212777 User Manual

Page 308

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Web OS 10.0 Application Guide

308

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Chapter 12: Global Server Load Balancing

212777-A, February 2002

Verifying GSLB Operation

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Use your browser to request the configured service (

www.foocorp.com

in the previous

example).

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Examine the

/info/slb

information on each switch.

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Check to see that all SLB parameters are working according to expectation. If necessary,
make any appropriate configuration changes and then check the information again.

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Examine the following statistics on each switch:

o

/stats/slb/gslb/virt

<virtual server number>

o

/stats/slb/gslb/group

<real server group number>

o

/stats/slb/maint

Configuring Client Site Preferences

Internet Assigned Numbers Authority (IANA), the central coordinator for the assignment of
unique parameter values for Internet protocols, does not provide sufficient geographic separa-
tion of client proximity information. As a result, large ISP partners cannot use their own geo-
graphic data to determine GSLB site selection based on client location. However, using static
“client-to-site” mapping in Web OS software, you can configure client proximity tables to select
GSLB sites based on client location.

The use of a static client/site database allows you to customize the client environment. The
proximity database is limited to 128 entries. The GSLB client proximity table is supported for
HTTP protocol.

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