Brocade Virtual ADX Global Server Load Balancing Guide (Su Uživatelský manuál

53-1003245-01July 2014Brocade Virtual ADXGlobal Server Load Balancing GuideSupporting Brocade Virtual ADX Version 03.1.00

x Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Document feedback• Brocade Supplemental Support augments your existing OEM suppor

90 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Host-level policies for site selection1You cannot disable or change the position

Brocade Virtual ADX Global Server Load Balancing Guide 9153-1003245-01Host-level policies for site selection1Use the Round Robin Selection metric inst

92 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Host-level policies for site selection1Displaying host-level policy informationD

Brocade Virtual ADX Global Server Load Balancing Guide 9353-1003245-01Host-level policies for site selection1Displaying all GSLB policiesTo view all d

94 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Host-level policies for site selection1Displaying the policy used for hostsTo vi

Brocade Virtual ADX Global Server Load Balancing Guide 9553-1003245-01Host-level policies for site selection1Displaying the number of host-level polic

96 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Host-level policies for site selection1Deleting a Policy That Has Been Applied t

Brocade Virtual ADX Global Server Load Balancing Guide 9753-1003245-01Geographic region for a prefix1Geographic region for a prefix Brocade’s GSLB pol

98 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Geographic region for a prefix1The GSLB Brocade Virtual ADX determines the geogr

Brocade Virtual ADX Global Server Load Balancing Guide 9953-1003245-01Geographic region for a prefix1Displaying the number of geographic prefixesTo vi

Brocade Virtual ADX Global Server Load Balancing Guide 153-1003245-01Chapter1Global Server Load Balancing Global Server Load Balancing overviewGlobal

100 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Geographic region for a prefix1To view all geographic prefixes on the GSLB Broc

Brocade Virtual ADX Global Server Load Balancing Guide 10153-1003245-01GSLB optimization14. After you configure a geographic location for the prefix,

102 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01GSLB optimization1Increased VIP support per site and reduced CPU usage on GSLB

Brocade Virtual ADX Global Server Load Balancing Guide 10353-1003245-01GSLB optimization15. Issue the show gslb site command to determine if optimizat

104 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1Guidelines and recommendations for using this featu

Brocade Virtual ADX Global Server Load Balancing Guide 10553-1003245-01Displaying GSLB information1To display information for all the configured sites

106 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1The following example shows information displayed w

Brocade Virtual ADX Global Server Load Balancing Guide 10753-1003245-01Displaying GSLB information1State The state of the GSLB protocol connection bet

108 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1Displaying real server informationGenerally, remote

Brocade Virtual ADX Global Server Load Balancing Guide 10953-1003245-01Displaying GSLB information1To display real server information for the real ser

2 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Global Server Load Balancing overview1• Straight-forward configuration • All IP p

110 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1To display information about all the DNS zones and

Brocade Virtual ADX Global Server Load Balancing Guide 11153-1003245-01Displaying GSLB information1Source The value following each server IP address i

112 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1Displaying detailed DNS informationYou can display

Brocade Virtual ADX Global Server Load Balancing Guide 11353-1003245-01Displaying GSLB information1The text shown in bold type in the example is the i

114 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1To view metric information, enter the show gslb dns

Brocade Virtual ADX Global Server Load Balancing Guide 11553-1003245-01Displaying GSLB information1Displaying the default GSLB policyTo display the de

116 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1DNS best-only Indicates whether you have configured

Brocade Virtual ADX Global Server Load Balancing Guide 11753-1003245-01Displaying GSLB information1DNS TTL Indicates the value (number of seconds) to

118 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1Displaying the user-configured GSLB policyTo displa

Brocade Virtual ADX Global Server Load Balancing Guide 11953-1003245-01Displaying GSLB information1Displaying GSLB resourcesFor GSLB parameters, you c

Brocade Virtual ADX Global Server Load Balancing Guide 353-1003245-01Global Server Load Balancing overview1The GSLB ADX device uses the GSLB protocol

120 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1Displaying dynamic server informationWhen you confi

Brocade Virtual ADX Global Server Load Balancing Guide 12153-1003245-01Displaying GSLB information1This information can be useful when troubleshooting

122 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1NOTESince the dynamic virtual servers use addresses

Brocade Virtual ADX Global Server Load Balancing Guide 12353-1003245-01Displaying GSLB information1Syntax: show server dynamic sessionsThe show server

124 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB information1NOTEAffinity groups are not supported in the show g

Brocade Virtual ADX Global Server Load Balancing Guide 12553-1003245-01SNMP traps and Syslog messages1Virtual ADX#show gslb cache 10.1.1.1 range 2 29p

126 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01SNMP traps and Syslog messages1Syslog messagesBy default, the ADX device’s Sysl

Brocade Virtual ADX Global Server Load Balancing Guide 12753-1003245-01Chapter2Global Server Load Balancing for IPv6Global Server Load Balancing for I

128 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Global Server Load Balancing for IPv6 overview2• Displaying GSLB for IPv6 confi

Brocade Virtual ADX Global Server Load Balancing Guide 12953-1003245-01Global Server Load Balancing for IPv6 overview2FragmentationFragmentation is no

4 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Global Server Load Balancing overview1• nntp: the well-known name for port 119• p

130 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Global Server Load Balancing for IPv6 overview2FIGURE 7 IPv6 GSLB configuration

Brocade Virtual ADX Global Server Load Balancing Guide 13153-1003245-01Basic GSLB for IPv6 configuration25. The local DNS server sends the GSLB DNS re

132 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Basic GSLB for IPv6 configuration2Adding a VIP for the ADNS serverThe server vi

Brocade Virtual ADX Global Server Load Balancing Guide 13353-1003245-01Basic GSLB for IPv6 configuration2NOTEAlthough DNS override is a global paramet

134 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Basic GSLB for IPv6 configuration2The tcp/udp-port-num parameter specifies a TC

Brocade Virtual ADX Global Server Load Balancing Guide 13553-1003245-01Basic GSLB for IPv6 configuration2Preserving optimized IPv6 processing with IPv

136 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Basic GSLB for IPv6 configuration2Configuring sitesThe GSLB protocol is disable

Brocade Virtual ADX Global Server Load Balancing Guide 13753-1003245-01Basic GSLB for IPv6 configuration2Site Brocade Virtual ADX configurationEnablin

138 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Basic GSLB for IPv6 configuration2In a DNS cache proxy with DNS override config

Brocade Virtual ADX Global Server Load Balancing Guide 13953-1003245-01Advanced GSLB configuration for IPv62The GSLB protocol is disabled by default o

Brocade Virtual ADX Global Server Load Balancing Guide 553-1003245-01Global Server Load Balancing overview1FIGURE 1 Global Server Load Balancing confi

140 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62Configuring GSLB policy metrics for IPv6Th

Brocade Virtual ADX Global Server Load Balancing Guide 14153-1003245-01Advanced GSLB configuration for IPv62Session capacity threshold Enabled.The def

142 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62All of these metrics have default values b

Brocade Virtual ADX Global Server Load Balancing Guide 14353-1003245-01Advanced GSLB configuration for IPv62This command changes the GSLB policy to th

144 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62Disabling or re-enabling individual GSLB p

Brocade Virtual ADX Global Server Load Balancing Guide 14553-1003245-01Advanced GSLB configuration for IPv62Weighted IP metricGSLB Brocade Virtual ADX

146 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62The host-name variable specifies the host

Brocade Virtual ADX Global Server Load Balancing Guide 14753-1003245-01Advanced GSLB configuration for IPv62Weighted site metricYou can configure the

148 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62DNS response processingWhen the weighted s

Brocade Virtual ADX Global Server Load Balancing Guide 14953-1003245-01Advanced GSLB configuration for IPv62If you consider the total site traffic for

6 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Global Server Load Balancing overview1The client’s local DNS server might cache D

150 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62Active bindings metricYou can configure th

Brocade Virtual ADX Global Server Load Balancing Guide 15153-1003245-01Advanced GSLB configuration for IPv62Configuring weighted active bindingsWeight

152 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62Geographic location metricBrocade Virtual

Brocade Virtual ADX Global Server Load Balancing Guide 15353-1003245-01Advanced GSLB configuration for IPv62• Asia• AfricaTo configure a geographic pr

154 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62Enabling default geographic locationThe us

Brocade Virtual ADX Global Server Load Balancing Guide 15553-1003245-01Advanced GSLB configuration for IPv62To change the session-table capacity metri

156 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62The GSLB Brocade Virtual ADX uses a tolera

Brocade Virtual ADX Global Server Load Balancing Guide 15753-1003245-01Advanced GSLB configuration for IPv62NOTEThe administrative preference metric i

158 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62Round robin selection metricThe round robi

Brocade Virtual ADX Global Server Load Balancing Guide 15953-1003245-01Advanced GSLB configuration for IPv62To return the same IP address for a client

Brocade Virtual ADX Global Server Load Balancing Guide 753-1003245-01Global Server Load Balancing overview1NOTEThe default order for the metrics is th

160 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Advanced GSLB configuration for IPv62To specify the prefix length, enter comman

Brocade Virtual ADX Global Server Load Balancing Guide 16153-1003245-01Advanced GSLB configuration for IPv62IPV4 and IPV6 sticky sessions will share t

162 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB for IPv6 configurations2Configuring a best-only policyThe GSLB

Brocade Virtual ADX Global Server Load Balancing Guide 16353-1003245-01Displaying GSLB for IPv6 configurations2Show commands for basic GSLB configurat

164 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB for IPv6 configurations2Displaying the default GSLB policyUse t

Brocade Virtual ADX Global Server Load Balancing Guide 16553-1003245-01Displaying GSLB for IPv6 configurations2DNS best-only Indicates whether you hav

166 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB for IPv6 configurations2Displaying user-configured GSLB policyU

Brocade Virtual ADX Global Server Load Balancing Guide 16753-1003245-01Displaying GSLB for IPv6 configurations2For a description of the information sh

168 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB for IPv6 configurations22001:db8::22001:db8::18218 (50 %)Site S

Brocade Virtual ADX Global Server Load Balancing Guide 16953-1003245-01Displaying GSLB for IPv6 configurations2Displaying DNS zone and hostsUse the sh

8 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Global Server Load Balancing overview1Weighted IP metricYou can configure the Bro

170 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB for IPv6 configurations2IP addresses The column of IP addresses

Brocade Virtual ADX Global Server Load Balancing Guide 17153-1003245-01Displaying GSLB for IPv6 configurations2Use the show gslb dns command to view i

172 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB for IPv6 configurations2Clearing DNS selection countersThe GSLB

Brocade Virtual ADX Global Server Load Balancing Guide 17353-1003245-01Displaying GSLB for IPv6 configurations2To display detailed GSLB information ab

174 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB for IPv6 configurations2For descriptions of the other informati

Brocade Virtual ADX Global Server Load Balancing Guide 17553-1003245-01Displaying GSLB for IPv6 configurations2SITE: atlantaSI: slb-1 192.108.22.111:s

176 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB for IPv6 configurations2Current num. sessions The number of ses

Brocade Virtual ADX Global Server Load Balancing Guide 17753-1003245-01Displaying GSLB for IPv6 configurations2Syntax: show gslb site [site-name]The s

178 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Displaying GSLB for IPv6 configurations2Displaying IPv6 optimization informatio

Brocade Virtual ADX Global Server Load Balancing Guide 17953-1003245-01Troubleshooting GSLB for IPv6 configurations2The show server debug command incl

Brocade Virtual ADX Global Server Load Balancing Guide 953-1003245-01Global Server Load Balancing overview1Active Bindings metricYou can configure the

180 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Troubleshooting GSLB for IPv6 configurations2**********************************

Brocade Virtual ADX Global Server Load Balancing Guide 18153-1003245-01Troubleshooting GSLB for IPv6 configurations2gslb_stale_vip_list_cnt: 0 gslb st

182 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Troubleshooting GSLB for IPv6 configurations2type GSLB_KEEPALIVE: 8701type GSLB

Brocade Virtual ADX Global Server Load Balancing Guide 353-1003245-01AppendixAReference MaterialsRFCIPv4RFC 791IPv6RFC 2460DNSThe GSLB ADX uses the In

4 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01DNSA145.248.0.0/14 EUROPE145.252.0.0/15 EUROPE145.254.0.0/16 EUROPE149.202.0.0/15

Brocade Virtual ADX Global Server Load Balancing Guide 553-1003245-01DNSA17.0.0.0/8 NORTH AMERICA171.16.0.0/12 EUROPE171.32.0.0/15 EUROPE18.0.0.0/8 NO

6 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01DNSAIPv6 address assignmentThe initial implementation of GSLB for IPv6 addresses

Brocade Virtual ADX Global Server Load Balancing Guide 753-1003245-01DNSA2001:1600::/23 RIPE NCC 2001:1800::/23 ARIN2001:1A00::/23 RIPE NCC 2001:1C00:

8 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01DNSA

Copyright © 2014 Brocade Communications Systems, Inc. All Rights Reserved.ADX, AnyIO, Brocade, Brocade Assurance, the B-wing symbol, DCX, Fabric OS, I

10 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Global Server Load Balancing overview1Site ADX device’s available session capaci

Brocade Virtual ADX Global Server Load Balancing Guide 1153-1003245-01Global Server Load Balancing overview1Site ADX device’s administrative preferenc

12 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Global Server Load Balancing overview1Round Robin SelectionThe Round Robin Selec

Brocade Virtual ADX Global Server Load Balancing Guide 1353-1003245-01Minimum required configuration1If you are configuring more than 256 zones or con

14 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Minimum required configuration1port dnsport httpbind dns dns-rs dnsbind http dns

Brocade Virtual ADX Global Server Load Balancing Guide 1553-1003245-01Configuring GSLB1To display the default settings, enter the following command (N

16 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB1You can configure the GSLB Brocade Virtual ADX to be a proxy fo

Brocade Virtual ADX Global Server Load Balancing Guide 1753-1003245-01Proxy for DNS server1• If a site contains ADX devices, identify the ADX devices

18 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Proxy for DNS server1The commands in this example add a real server called “dns_

Brocade Virtual ADX Global Server Load Balancing Guide 1953-1003245-01Proxy for DNS server1Virtual ADX(config)#gslb site sunnyvaleVirtual ADX(config-g

Brocade Virtual ADX Global Server Load Balancing Guide iii53-1003245-01ContentsPrefaceDocument conventions. . . . . . . . . . . . . . . . . . . . . .

20 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Proxy for DNS server1NOTEIf the GSLB Brocade Virtual ADX itself is also a site f

Brocade Virtual ADX Global Server Load Balancing Guide 2153-1003245-01Proxy for DNS server1This example adds the zone brocade.com and two host names w

22 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Proxy for DNS server1By default, the Brocade Virtual ADX applies the GSLB policy

Brocade Virtual ADX Global Server Load Balancing Guide 2353-1003245-01Proxy for DNS server1 Configuring HTTP health check parametersFor HTTP hosts, yo

24 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Proxy for DNS server1Typically, you use this set of features when the DNS server

Brocade Virtual ADX Global Server Load Balancing Guide 2553-1003245-01Proxy for DNS server1Configuring null host namesWhen you configure a zone name i

26 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Private VIPs for GSLB1The following commands enable DNS override on the Brocade

Brocade Virtual ADX Global Server Load Balancing Guide 2753-1003245-01Private VIPs for GSLB1Configuring a public IP address for a VIPTo configure a pu

28 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1To display public IP address information, e

Brocade Virtual ADX Global Server Load Balancing Guide 2953-1003245-01Configuring GSLB protocol parameters1You can change the period to a value from 1

iv Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Site persistence in GSLB using stickiness. . . . . . . . . . . . . . . . . . . .

30 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1• In DNS proxy, the entire list of IP addre

Brocade Virtual ADX Global Server Load Balancing Guide 3153-1003245-01Configuring GSLB protocol parameters1Virtual ADX(config)#gslb policy Virtual ADX

32 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1DNS override is useful when you want to pro

Brocade Virtual ADX Global Server Load Balancing Guide 3353-1003245-01Configuring GSLB protocol parameters1NOTEDNS override is a global parameter but

34 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1TABLE 2 GSLB policy metricsMetric Default C

Brocade Virtual ADX Global Server Load Balancing Guide 3553-1003245-01Configuring GSLB protocol parameters1After changing policy values, you can displ

36 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1NOTEYou also can configure the Brocade Virt

Brocade Virtual ADX Global Server Load Balancing Guide 3753-1003245-01Configuring GSLB protocol parameters1• flashback – The site ADX device’s FlashBa

38 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1To enable the administrative preference met

Brocade Virtual ADX Global Server Load Balancing Guide 3953-1003245-01Configuring GSLB protocol parameters1Implementing the Weighted IP metricYou can

Brocade Virtual ADX Global Server Load Balancing Guide v53-1003245-01Displaying GSLB information . . . . . . . . . . . . . . . . . . . . . . . . . . .

40 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1SLB-Virtual ADX(config-gslb-policy)#weighte

Brocade Virtual ADX Global Server Load Balancing Guide 4153-1003245-01Configuring GSLB protocol parameters1Syntax: show gslb dns zone Implementing th

42 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1DNS response processingWhen the Weighted Si

Brocade Virtual ADX Global Server Load Balancing Guide 4353-1003245-01Configuring GSLB protocol parameters1Configuring Weighted Site metricsTo configu

44 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1Syntax: show gslb traffic siteThis command

Brocade Virtual ADX Global Server Load Balancing Guide 4553-1003245-01Configuring GSLB protocol parameters1In order to implement the Active Bindings m

46 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1Syntax: show gslb dns zoneRefer to “Display

Brocade Virtual ADX Global Server Load Balancing Guide 4753-1003245-01Configuring GSLB protocol parameters1Tracking an application port for active bin

48 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1Specifying the site connection limitThe sit

Brocade Virtual ADX Global Server Load Balancing Guide 4953-1003245-01Configuring GSLB protocol parameters1This command changes the number of sampling

vi Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

50 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Configuring GSLB protocol parameters1Changing the session-table capacity thresho

Brocade Virtual ADX Global Server Load Balancing Guide 5153-1003245-01Secure GSLB1When the Brocade Virtual ADX compares the FlashBack speeds, it compa

52 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Secure GSLB1The unencrypted packet refers to the entire packet without a MAC. Th

Brocade Virtual ADX Global Server Load Balancing Guide 5353-1003245-01Secure GSLB1From Site ADX device to GSLB Controller:• Site ADX device uses the p

54 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Secure GSLB1Generating RSA key pair Before authentication can proceed, each ADX

Brocade Virtual ADX Global Server Load Balancing Guide 5553-1003245-01Secure GSLB1Exchanging public keys Each ADX device must exchange public keys wit

56 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Secure GSLB1The IP address parameter specifies peer IP address this device talks

Brocade Virtual ADX Global Server Load Balancing Guide 5753-1003245-01Secure GSLB1To verify the communication state and public fingerprint key entry b

58 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Secure GSLB1The never option, after the initial public key exchange, configures

Brocade Virtual ADX Global Server Load Balancing Guide 5953-1003245-01Site persistence in GSLB using stickiness1The random option configures the contr

Brocade Virtual ADX Global Server Load Balancing Guide vii53-1003245-01PrefaceDocument conventionsThis section describes text formatting conventions a

60 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Site persistence in GSLB using stickiness1To ensure the selected IP is still val

Brocade Virtual ADX Global Server Load Balancing Guide 6153-1003245-01Site persistence in GSLB using stickiness1Enabling sticky GSLBEnabling sticky GS

62 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Site persistence in GSLB using stickiness1Displaying current sticky GSLB session

Brocade Virtual ADX Global Server Load Balancing Guide 6353-1003245-01Site persistence in GSLB using stickiness1Sticky GSLB countersTo display how man

64 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Site persistence in GSLB using stickiness1The “Sticky selection count” is automa

Brocade Virtual ADX Global Server Load Balancing Guide 6553-1003245-01DNS cache proxy1Deleting sticky GSLB session for a specific clientTo delete Stic

66 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01DNS cache proxy1If the GSLB Brocade Virtual ADX cannot respond directly to the c

Brocade Virtual ADX Global Server Load Balancing Guide 6753-1003245-01DNS cache proxy1• Number of DNS queries the GSLB Brocade Virtual ADX has respond

68 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01DNS cache proxy1When you enable the DNS override feature, you also need to confi

Brocade Virtual ADX Global Server Load Balancing Guide 6953-1003245-01Transparent DNS query intercept1In modes such as DNS proxy, when client sends a

viii Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Command syntax conventionsNotes, cautions, and warningsThe following notices a

70 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Transparent DNS query intercept1NOTEA Brocade Virtual ADX configured for transpa

Brocade Virtual ADX Global Server Load Balancing Guide 7153-1003245-01Transparent DNS query intercept1FIGURE 5 Transparent DNS query intercept configu

72 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Transparent DNS query intercept1NOTEIn standard GSLB configuration, the Brocade

Brocade Virtual ADX Global Server Load Balancing Guide 7353-1003245-01Transparent DNS query intercept1queries. This parameter also instructs the Broca

74 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Transparent DNS query intercept1The commands are the same as the ones for config

Brocade Virtual ADX Global Server Load Balancing Guide 7553-1003245-01Transparent DNS query intercept1Syntax: host-info host-name ip-list { ipv4-addre

76 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Enabling DNS request logging1Enabling DNS request loggingYou can enable logging

Brocade Virtual ADX Global Server Load Balancing Guide 7753-1003245-01Enabling DNS request logging1Distributed health checks for GSLBThe GSLB Brocade

78 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Enabling DNS request logging1Syntax: [no] si-name [name] ip-addr no-si-dist-heal

Brocade Virtual ADX Global Server Load Balancing Guide 7953-1003245-01Enabling DNS request logging1Configuring the maximum ports per VIP address in a

Brocade Virtual ADX Global Server Load Balancing Guide ix53-1003245-01Brocade resourcesTo get up-to-the-minute information, go to http://my.brocade.co

80 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Enabling DNS request logging1This configuration can be made locally on the indiv

Brocade Virtual ADX Global Server Load Balancing Guide 8153-1003245-01Enabling DNS request logging1the host servers behind the non-distributed health

82 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Enabling DNS request logging1Mandatory configuration is required to disable dist

Brocade Virtual ADX Global Server Load Balancing Guide 8353-1003245-01Enabling DNS request logging1In the above example, configure the following on th

84 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Host-level policies for site selection1Host-level policies for site selectionBro

Brocade Virtual ADX Global Server Load Balancing Guide 8553-1003245-01Host-level policies for site selection1Defining a name for a host-level GSLB pol

86 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Host-level policies for site selection1• Sampling intervals and sample rate• Int

Brocade Virtual ADX Global Server Load Balancing Guide 8753-1003245-01Host-level policies for site selection1When you configure a GSLB host-level poli

88 Brocade Virtual ADX Global Server Load Balancing Guide53-1003245-01Host-level policies for site selection1• TCP toleranceThe GSLB Brocade Virtual A

Brocade Virtual ADX Global Server Load Balancing Guide 8953-1003245-01Host-level policies for site selection1NOTEWhen both the Health Check metric and