1 Displaying the contents of active RTT cache entries

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Client IP address: 30.30.1.2

Domain : www.l47qa.com

Number of hashed IPs for domain : 3

Number of active IPs for domain : 3

Client IP hashes to bucket number: 63

IP associated with hash bucket 63: 20.20.1.100

Your Client IP 30.30.1.2 will be serviced by domain IP 20.20.1.100

Displaying weighted hash-based GSLB persistence

The following command will show the list of active DNS domain IPs of a zone, weight value configured for each IP, number of hash buckets allocated for each IP and usage counter for each IP.

Syntax: show gslb phash active-ip [all zone-name <name> host-name <name>]

The command should be used on Barrel Processors only. User should use the "rconsole <slot> <processor>" command to go the desired Barrel Processor and should use this command on the Barrel Processor.

Here is the sample output of this command.

ServerIronADX# show gslb phash active-ip all Persistent Hash active IP address for www.l47qa.com active IP: 20.20.1.100, weight: 100, buckets: 212, usage: 0 active IP: 30.30.1.100, weight: 10, buckets: 22, usage: 0 active IP: 40.40.1.100, weight: 10, buckets: 22, usage: 0

Debug command

User can configure the following command to enable debugging for weighted hash-based GSLB persistence.

ServerIronADX# debug phash

Syntax: [no] debug phash

Displaying the contents of active RTT cache entries

To display the contents of the active RTT cache entries on the site ServerIron ADX, enter a command such as the following:

Site-ServerIronADX#show gslb active-rtt-cache 1.1.1.42

Prefix length = 20, Prefix = 1.1.0.0

Age = 90, Cache Interval = 600

Refresh Age = 90, Refresh Interval = 600

ICMP query initiated = 1, ICMP query in progress = 0

DNS query initiated = 0, DNS query in progress = 0

Syntax: show gslb active-rtt-cache <ldns-ip>

The <ldns-ip>refers to the IP address of the local DNS server for which you want to display the corresponding prefix entry in the site ServerIron ADX active RTT cache.

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ServerIron ADX Global Server Load Balancing Guide

 

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Brocade Communications Systems 12.4.00 manual Displaying the contents of active RTT cache entries