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Cisco CSS 11000 Series Content Services Switches

CSS 11000 Sticky Global Load Balancing Configuration Example

Document ID: 12590

Updated: Jan 03, 2007

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Introduction

This document provides a sample configuration for sticky global load balancing on the Cisco CSS 11000 Series Content Services Switches.

Prerequisites

Requirements

Ensure that you meet these requirements before you attempt this configuration:

  • Make the rules sticky. After an initial connection has been load balanced to a server, make all subsequent connections to that same server.

  • Each site must have site-specific URLs or relative links. Web servers accept URLs that are specific to their site.

  • If you use Secure Socket Layer (SSL) servers, they must include certificates for the site-specific names. Use HTTP when you initially load balance the SSL servers.

  • The CSS WebNS Enhanced feature set license key is needed for the Proximity Database and Secure Shell Protocol (SSH), which are optional features. If you enter the Proximity Database license key after you boot the CSS 11000, you must reboot the CSS 11000 before you can configure the Proximity Database so the CSS 11000 can reallocate memory. For licensing information, contact the Cisco licensing team at licensing@cisco.com.

Components Used

The information in this document is based on these software and hardware versions:

  • Cisco CSS 11150

  • Cisco Web Network Services (WebNS) Software Release 5.0, Build 2 (Use Build 4 or later.)

  • Cisco WebNS Software Release 4.10, Build 10 (Use WebNS 4.01 or later, Build 37s.)

  • Cisco WebNS Software Release 4.01, Build 23

  • Cisco WebNS Software Release 4.10, Build 17s

Note: Use global server load balancing Cisco WebNS 3.10, Build 71 or later; Cisco WebNS 4.01, Build 14 or later; or Cisco WebNS 5.0, Build 4 or later.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

Refer to the Cisco Technical Tips Conventions for information on document conventions.

Background Information

The Cisco CSS 11000 answers Domain Name Service (DNS) queries when it uses global load balancing. Until a subsequent DNS query occurs, a user continues to use servers at a given site. Issues arise when a second DNS query returns a new Virtual Internet Protocol (VIP) address and sends a user to a different site, while the state information remains at the original site. In many cases, a user needs to stick to the original site that has the state information.

Configure

In this section, you are presented with the information to configure the features described in this document.

Note: Use the Command Lookup Tool (registered customers only) for more information on the commands used in this section.

Network Diagram

This document uses this network setup:

css_glb_sticky-1.gif

Description

In this example, a company named mycompany.com has four sites and four servers at each site. The company uses the generic name of www.mycompany.com for its Web servers. Each site uses a site-specific name of site-x, in which x equals a, b, c, or d. Users are initially load balanced to the least-loaded site and to the least-loaded server at that site. From that point, they remain on that site and server unless one of these situations occur:

  • The site loses all its servers.

  • A link sends the user to the generic URL.

  • The CSS 11000 is shut down on the site.

The rules, LOCAL-?, respond to DNS queries for site-specific names. Therefore, the port number and the URL in those rules are insignificant. They differentiate them from other services because duplicate services with the same rules are not permitted.

The services, REMOTE-?, require HTTP keepalives because Internet Control Message Protocol (ICMP) keepalives to a VIP that has no local services alive are still successful. If you send a DNS query to CSS-A for site-b.mycompany.com (assume that site-b has no services alive), CSS-A attempts a keepalive on 192.168.2.6. The ICMP type responds successfully, which causes you to return that VIP (192.168.2.6) and leaves the user connected to a dead site. In this case, an HTTP would fail and cause the user to receive a different address for site-b.mycompany.com. When users reach the other site with the URL site-b, they are redirected to the local site-specific name by the ReDirectMeB rule. This is important in the case that a user has bookmarked a site that has been removed or is down for maintenance.

Configurations

This document uses these configurations:

These tables provide an example of each configuration.

CSS-A Switch Configuration WebNS 5.0, Build 2

!--- This is the configuration for the CSS at site A.
 
prompt CSS-A
configure

!--- *************************** GLOBAL ***************************

acl enable
dns-server
app
app session 192.168.2.1
app session 192.168.3.1
app session 192.168.4.1
ip route 0.0.0.0 0.0.0.0 192.168.1.254 1

!--- *************************** CIRCUIT **************************

circuit VLAN1
 ip address 192.168.1.1 255.255.255.0

!--- *************************** SERVICE **************************

service A-S1
  ip address 192.168.1.2
  active
service A-S2
  ip address 192.168.1.3
  active
service A-S3
  ip address 192.168.1.4
  active
service A-S4
  ip address 192.168.1.5
  active
service RedirectLocal
  domain site-a.mycompany.com
  type redirect
  keepalive type none
  active
service REMOTE-B
  ip address 192.168.2.6
  keepalive type http
  keepalive method head
  active
service REMOTE-C
  ip address 192.168.3.6
  keepalive type http
  keepalive method head
  active
service REMOTE-D
  ip address 192.168.4.6
  keepalive type http
  keepalive method head
  active

!--- *************************** OWNER ***************************

owner GSLB
dns both
content WWW
  vip address 192.168.1.6
  add service A-S1
  add service A-S2
  add service A-S3
  add service A-S4
  add dns www.mycompany.com
  balance leastconn
  advanced-balance sticky-srcip
  active
content ReDirectMe
  VIP address 192.168.1.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//www.mycompany.com/*"
  active
content ReDirectMeB
  VIP address 192.168.1.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-b.mycompany.com/*"
  active
content ReDirectMeC
  VIP address 192.168.1.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-c.mycompany.com/*"
  active
content ReDirectMeD
  VIP address 192.168.1.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-d.mycompany.com/*"
  active

!--- You need to differentiate these rules from other
!--- rules: if you did not set a bogus port and URL, the LOCAL-? 
!--- rules conflict with the WWW rule or the ReDirectMe?.  
!--- These rules are used only for DNS responses.

content LOCAL-A
  VIP address 192.168.1.6
  protocol tcp
  port 81
  url "//site-a.mycompany.com/*"
  add service A-S1
  add service A-S2
  add service A-S3
  add service A-S4
  add dns site-a.mycompany.com
  dnsbalance preferlocal
  balance leastconn
  advanced-balance sticky-srcip
  active
content LOCAL-B
  VIP address 192.168.1.6
  protocol tcp
  port 81
  url "//site-b.mycompany.com/*"
  add service A-S1
  add service A-S2
  add service A-S3
  add service A-S4
  add dns site-b.mycompany.com
  active
content LOCAL-C
  VIP address 192.168.1.6
  protocol tcp
  port 81
  url "//site-c.mycompany.com/*"
  add service A-S1
  add service A-S2
  add service A-S3
  add service A-S4
  add dns site-c.mycompany.com
  active
content LOCAL-D
  VIP address 192.168.1.6
  protocol tcp
  port 81
  url "//site-d.mycompany.com/*"
  add service A-S1
  add service A-S2
  add service A-S3
  add service A-S4
  add dns site-d.mycompany.com
  active

!--- ****************** Access Control List (ACL) *****************

acl 1
  clause 10 permit any any destination content GSLB/LOCAL-B prefer REMOTE-B
  clause 20 permit any any destination content GSLB/LOCAL-C prefer REMOTE-C
  clause 30 permit any any destination content GSLB/LOCAL-D prefer REMOTE-D
  clause 99 permit any any destination any
  apply circuit-(VLAN1)
  apply dns

CSS-B Switch Configuration WebNS 4.10, Build 10

!--- This is the configuration for the CSS at site B.

prompt CSS-B
configure

!--- *************************** GLOBAL ***************************
  
acl enable
dns-server
app
app session 192.168.1.1
app session 192.168.3.1
app session 192.168.4.1
ip route 0.0.0.0 0.0.0.0 192.168.2.254 1

!--- *************************** CIRCUIT ***************************

circuit VLAN1
  ip address 192.168.2.1 255.255.255.0

!--- *************************** SERVICE ***************************

service B-S1
  ip address 192.168.2.2
  active
service B-S2
  ip address 192.168.2.3
  active
service B-S3
  ip address 192.168.2.4
  active
service B-S4
  ip address 192.168.2.5
  active
service RedirectLocal
  domain site-b.mycompany.com
  type redirect
  keepalive type none
  active
service REMOTE-A
  ip address 192.168.1.6
  keepalive type http
  keepalive method head
  active
service REMOTE-C
  ip address 192.168.3.6
  keepalive type http
  keepalive method head
  active
service REMOTE-D
  ip address 192.168.4.6
  keepalive type http
  keepalive method head
  active

!--- *************************** OWNER ***************************

owner GSLB
dns both
content WWW
  VIP address 192.168.2.6
  add service B-S1
  add service B-S2
  add service B-S3
  add service B-S4
  add dns www.mycompany.com
  balance leastconn
  advanced-balance sticky-srcip
  active
content ReDirectMe
  VIP address 192.168.2.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//www.mycompany.com/*"
  active
content ReDirectMeA
  VIP address 192.168.2.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-a.mycompany.com/*"
  active
content ReDirectMeC
  VIP address 192.168.2.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-c.mycompany.com/*"
  active
content ReDirectMeD
  VIP address 192.168.2.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-d.mycompany.com/*"
  active

!--- You need to differentiate these rules from other
!--- rules: if you did not set a bogus port and URL, the LOCAL-?  
!--- rules conflict with the WWW rule or the ReDirectMe?.  
!--- These rules are used only for DNS responses.
  
Content LOCAL-A
  VIP address 192.168.2.6
  protocol tcp
  port 81
  url "//site-a.mycompany.com/*"
  add service B-S1
  add service B-S2
  add service B-S3
  add service B-S4
  add dns site-a.mycompany.com
  active
content LOCAL-B
  VIP address 192.168.2.6
  protocol tcp
  port 81
  url "//site-b.mycompany.com/*"
  add service B-S1
  add service B-S2
  add service B-S3
  add service B-S4
  add dns site-b.mycompany.com
  dnsbalance preferlocal
  balance leastconn
  advanced-balance sticky-srcip
  active
content LOCAL-C
  VIP address 192.168.2.6
  protocol tcp
  port 81
  url "//site-c.mycompany.com/*"
  add service B-S1
  add service B-S2
  add service B-S3
  add service B-S4
  add dns site-c.mycompany.com
  active
content LOCAL-D
  VIP address 192.168.2.6
  protocol tcp
  port 81
  url "//site-d.mycompany.com/*"
  add service B-S1
  add service B-S2
  add service B-S3
  add service B-S4
  add dns site-d.mycompany.com
  active

!--- *************************** ACL ************************** 

acl 1
  clause 10 permit any any destination content GSLB/LOCAL-A prefer REMOTE-A
  clause 20 permit any any destination content GSLB/LOCAL-C prefer REMOTE-C
  clause 30 permit any any destination content GSLB/LOCAL-D prefer REMOTE-D
  clause 99 permit any any destination any
  apply circuit-(VLAN1)
  apply dns

CSS-C Switch Configuration WebNS 4.01, Build 23

!--- This is the configuration for the CSS at site C.

prompt CSS-C
configure

!--- *************************** GLOBAL ***************************
   
acl enable
dns-server
app
app session 192.168.1.1
app session 192.168.2.1
app session 192.168.4.1
ip route 0.0.0.0 0.0.0.0 192.168.3.254 1

!--- *************************** CIRCUIT ***************************

circuit VLAN1
 ip address 192.168.3.1 255.255.255.0

!--- *************************** SERVICE ***************************
   
service C-S1
  ip address 192.168.3.2
  active
service C-S2
  ip address 192.168.3.3
  active
service C-S3
  ip address 192.168.3.4
  active
service C-S4
  ip address 192.168.3.5
  active
service RedirectLocal
  domain site-c.mycompany.com
  type redirect
  keepalive type none
  active
service REMOTE-A
  ip address 192.168.1.6
  keepalive type http
  keepalive method head
  active
service REMOTE-B
  ip address 192.168.2.6
  keepalive type http
  keepalive method head
  active
service REMOTE-D
  ip address 192.168.4.6
  keepalive type http
  keepalive method head
  active

!--- *************************** OWNER ***************************

owner GSLB
dns both
content WWW
  VIP address 192.168.3.6
  add service C-S1
  add service C-S2
  add service C-S3
  add service C-S4
  add dns www.mycompany.com
  balance leastconn
  advanced-balance sticky-srcip
  active
content ReDirectMe
  VIP address 192.168.3.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//www.mycompany.com/*"
  active
content ReDirectMeA
  VIP address 192.168.3.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-a.mycompany.com/*"
  active
content ReDirectMeB
  VIP address 192.168.3.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-b.mycompany.com/*"
  active
content ReDirectMeD
  VIP address 192.168.3.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-d.mycompany.com/*"
  active

!--- You need to differentiate these rules from other
!--- rules: if you did not set a bogus port and URL, the LOCAL-?
!--- rules conflict with the WWW rule or the ReDirectMe?.  
!--- Use only these rules for DNS responses.

Content LOCAL-A
  VIP address 192.168.3.6
  protocol tcp
  port 81
  url "//site-a.mycompany.com/*"
  add service C-S1
  add service C-S2
  add service C-S3
  add service C-S4
  add dns site-a.mycompany.com
  active
content LOCAL-B
  VIP address 192.168.3.6
  protocol tcp
  port 81
  url "//site-b.mycompany.com/*"
  add service C-S1
  add service C-S2
  add service C-S3
  add service C-S4
  add dns site-b.mycompany.com
  active
content LOCAL-C
  VIP address 192.168.3.6
  protocol tcp
  port 81
  url "//site-c.mycompany.com/*"
  add service C-S1
  add service C-S2
  add service C-S3
  add service C-S4
  add dns site-c.mycompany.com
  dnsbalance preferlocal
  balance leastconn
  advanced-balance sticky-srcip
  active
content LOCAL-D
  VIP address 192.168.3.6
  protocol tcp
  port 81
  url "//site-d.mycompany.com/*"
  add service C-S1
  add service C-S2
  add service C-S3
  add service C-S4
  add dns site-d.mycompany.com
  active

!--- *************************** ACL ***************************
   
acl 1
  clause 10 permit any any destination content GSLB/LOCAL-A prefer REMOTE-A
  clause 20 permit any any destination content GSLB/LOCAL-B prefer REMOTE-B
  clause 30 permit any any destination content GSLB/LOCAL-D prefer REMOTE-D
  clause 99 permit any any destination any
  apply circuit-(VLAN1)
  apply dns

CSS-D Switch Configuration WebNS 4.10, Build 17

!---  This is the configuration for the CSS at site D.

prompt CSS-D
configure

!--- *************************** GLOBAL ***************************

acl enable
dns-server
app
app session 192.168.1.1
app session 192.168.2.1
app session 192.168.3.1
ip route 0.0.0.0 0.0.0.0 192.168.4.254 1

!--- *************************** CIRCUIT ***************************

circuit VLAN1
 ip address 192.168.4.1 255.255.255.0

!--- *************************** SERVICE ***************************

service D-S1
  ip address 192.168.4.2
  active
service D-S2
  ip address 192.168.4.3
  active
service D-S3
  ip address 192.168.4.4
  active
service D-S4
  ip address 192.168.4.5
  active
service RedirectLocal
  domain site-d.mycompany.com
  type redirect
  keepalive type none
  active
service REMOTE-A
  ip address 192.168.1.6
  keepalive type http
  keepalive method head
  active
service REMOTE-B
  ip address 192.168.2.6
  keepalive type http
  keepalive method head
  active
service REMOTE-C
  ip address 192.168.3.6
  keepalive type http
  keepalive method head
  active

!--- *************************** OWNER ***************************

owner GSLB
dns both
content WWW
  VIP address 192.168.4.6
  add service D-S1
  add service D-S2
  add service D-S3
  add service D-S4
  add dns www.mycompany.com
  balance leastconn
  advanced-balance sticky-srcip
  active
content ReDirectMe
  VIP address 192.168.4.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//www.mycompany.com/*"
  active
content ReDirectMeA
  VIP address 192.168.4.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-a.mycompany.com/*"
  active
content ReDirectMeB
  VIP address 192.168.4.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-b.mycompany.com/*"
  active
content ReDirectMeC
  VIP address 192.168.4.6
  protocol tcp
  port 80
  add service RedirectLocal
  url "//site-c.mycompany.com/*"
  active

!--- You need to differentiate these rules from other
!--- rules: if you did not set a bogus port and URL, the LOCAL-?
!--- rules conflict with the WWW rule or the ReDirectMe?.  
!--- Use only these rules for DNS responses.

Content LOCAL-A
  VIP address 192.168.4.6
  protocol tcp
  port 81
  url "//site-a.mycompany.com/*"
  add service D-S1
  add service D-S2
  add service D-S3
  add service D-S4
  add dns site-a.mycompany.com
  active
content LOCAL-B
  VIP address 192.168.4.6
  protocol tcp
  port 81
  url "//site-b.mycompany.com/*"
  add service D-S1
  add service D-S2
  add service D-S3
  add service D-S4
  add dns site-b.mycompany.com
  active
content LOCAL-C
  VIP address 192.168.4.6
  protocol tcp
  port 81
  url "//site-c.mycompany.com/*"
  add service D-S1
  add service D-S2
  add service D-S3
  add service D-S4
  add dns site-c.mycompany.com
  active
content LOCAL-D
  VIP address 192.168.4.6
  protocol tcp
  port 81
  url "//site-d.mycompany.com/*"
  add service D-S1
  add service D-S2
  add service D-S3
  add service D-S4
  add dns site-d.mycompany.com
  dnsbalance preferlocal
  balance leastconn
  advanced-balance sticky-srcip
  active

!--- *************************** ACL ***************************

acl 1
  clause 10 permit any any destination content GSLB/LOCAL-A prefer REMOTE-A
  clause 20 permit any any destination content GSLB/LOCAL-B prefer REMOTE-B
  clause 30 permit any any destination content GSLB/LOCAL-C prefer REMOTE-C
  clause 99 permit any any destination any
  apply circuit-(VLAN1)
  apply dns

Verify

Use this section in order to confirm that your configuration works properly.

The Output Interpreter Tool (registered customers only) (OIT) supports certain show commands. Use the OIT in order to view an analysis of show command output.

show app session

In order to verify that all the sites have valid Application Peering Protocol (APP) sessions, issue the show app session command.


CSS-B#show app session
App Session Information 'no hostname':
Session ID: 83ba9e40  IP Address: 192.168.1.1  State: APP_SESSION_UP
App Session Information 'no hostname':
Session ID: 83ba1c00  IP Address: 192.168.3.1  State: APP_SESSION_UP
App Session Information 'no hostname':
Session ID: 83b999c0  IP Address: 192.168.4.1  State: APP_SESSION_UP
CSS-B# 

show summary

For a list of rules and the associated services, issue the show summary command.

CSS-B#show summary
Global Bypass Counters:
No Rule Bypass Count:     0
Acl Bypass Count:         0

Owner            Content Rules    State     Services         Service Hits
GSLB             WWW              Active    B-S1             36968
                                            B-S2             0
                                            B-S3             0
                                            B-S4             0
                                            WWW@192.168.1.6  0
                                            WWW@192.168.3.6  0
                                            WWW@192.168.4.6  0
                                        
                 LOCAL-A          Active    B-S1             0
                                            B-S2             0
                                            B-S3             0
                                            B-S4             0
                                            LOCAL-A@192.168. 0
                                            LOCAL-A@192.168. 0
                                            LOCAL-A@192.168. 0
                                      
                 LOCAL-B          Active    B-S1             0
                                            B-S2             0
                                            B-S3             0
                                            B-S4             0
                                            LOCAL-B@192.168. 0
                                            LOCAL-B@192.168. 0
                                            LOCAL-B@192.168. 0
                          

                 LOCAL-C          Active    B-S1             0
                                            B-S2             0
                                            B-S3             0
                                            B-S4             0
                                            LOCAL-C@192.168. 0
                                            LOCAL-C@192.168. 0
                                            LOCAL-C@192.168. 0

                          
                 LOCAL-D          Active    B-S1             0
                                            B-S2             0
                                            B-S3             0
                                            B-S4             0
                                            LOCAL-D@192.168. 0
                                            LOCAL-D@192.168. 0
                                            LOCAL-D@192.168. 0                                  

                 ReDirectMe       Active    RedirectLocal    0                                   
                 ReDirectMeA      Active    RedirectLocal    0
                 ReDirectMeC      Active    RedirectLocal                                         
                 ReDirectMeD      Active    RedirectLocal    0                                    

                 
CSS-B#

show service summary

You can determine the operational services that each site has if you issue the show service summary command. Remote sites are those listed with an "@" symbol in the name. The site name is comprised of the content rule name followed by the VIP address at the remote site. A load of 255 on a remote rule means that all services for the specified rule at that site are down. This output shows that site-d has no services alive, yet the site itself is alive.

CSS-A#show service summary
Service Name                     State     Conn  Weight  Avg   State
                                                        Load  Transitions

A-S1                             Alive       0      1     2      0
A-S2                             Alive       1      1    32      0
A-S3                             Down        0      1   255      0
A-S4                             Down        0      1   255      0
RedirectLocal                    Alive       0      1     2      0
REMOTE-B                         Alive       0      1     2      2
REMOTE-C                         Alive       0      1     2      0
REMOTE-D                         Down        0      1   255      1
WWW@192.168.4.6                  Alive       0      1   255      0
LOCAL-A@192.168.4.6              Alive       0      1   255      0
LOCAL-B@192.168.4.6              Alive       0      1   255      0
LOCAL-C@192.168.4.6              Alive       0      1   255      0
LOCAL-D@192.168.4.6              Alive       0      1   255      0
WWW@192.168.3.6                  Alive       0      1    87      0
LOCAL-A@192.168.3.6              Alive       0      1    87      0
LOCAL-B@192.168.3.6              Alive       0      1    87      0
LOCAL-C@192.168.3.6              Alive       0      1    87      0
LOCAL-D@192.168.3.6              Alive       0      1    87      0
WWW@192.168.2.6                  Alive       0      1     4      0
LOCAL-A@192.168.2.6              Alive       0      1     4      0
LOCAL-B@192.168.2.6              Alive       0      1     4      0
LOCAL-C@192.168.2.6              Alive       0      1     4      0
LOCAL-D@192.168.2.6              Alive       0      1     4      0

CSS-A#

show rule

In order to verify rules, issue the show rule command.

CSS-B#show rule GSLB WWW  

  Name:                     WWW   Owner:             GSLB
  Author:                 Local   Index:                9
  State:                 Active   Type:              HTTP
  IP Redundancy:  Not Redundant
    L3:         192.168.2.6
    L4:         Any/Any
    Url:        
    URQL:        
    EQL:        
    DQL:        
    Header Field Group: 
    Total Bytes:             48948441   Total Frames:           336684
    Total Redirects:                0   Total Rejects:               0
    Overload Rejects:               0

  Balance: Least Connections
  Advanced Balance: Source IP
    Sticky Mask: 255.255.255.255
    Sticky Inactivity timeout: 0 minutes
    Sticky No Cookie Found Action: Balance
    Sticky Server Down Failover: Balance
    ArrowPoint Cookie Path: /
    ArrowPoint Cookie Expiration: Browser Exit
    ArrowPoint Cookie Text: None
    ArrowPoint Cookie Url: None
    Arrowpoint Cookie display url in header: Enabled

  String Match Criteria:
    String Range: 1 - 100
    String Prefix: ""
    String Eos-Char: ""           String Ascii-Conversion: Enabled
    String Skip-Len: 0            String Process-Len: 0
    String Operation: Match-Service-Cookie
  Redirect: ""
  Persistence: Enabled
  Param-Bypass: Disabled
  Services:
    Local Load Threshold: 254
    PrimarySorryServer: None
    SecondSorryServer: None


  Name:            Hits:         Wgt: State:   Ld: KAlive:   Conn: DNS:         

  -----            -----         ---- ------   --- -------   ----- ----         
  B-S1             36,934        S-1  Alive    2   ICMP      2     0            
  B-S2             0             S-1  Down     255 ICMP      0     0            
  B-S3             0             S-1  Down     255 ICMP      0     0            
  B-S4             0             S-1  Down     255 ICMP      0     0            

  WWW@192.168.1.6  

                   0             S-1  Alive    10  APP       0     0            


  WWW@192.168.3.6  

                   0             S-1  Alive    5   APP       0     0            


  WWW@192.168.4.6  

                   0            S-1   Alive    5   APP       0     0            


  DNS Names:                   DNS TTL:
  DNS Balance: roundrobin
  www.mycompany.com               0
  Hotlist: Disabled
  Size: 10, Type: HitCount, Threshold 0, Interval 1
  Associated ACLs:  

CSS-B#

show rule services

A site that has no active services has a load of 255. (Refer to the Ld column in the show rule output.) With WebNS 5.0, you can issue the show rule services command in order to view services.

Note: In this output, no services are alive for Site 4 even though the state is alive.

CSS-A#show rule GSLB WWW services 
Rule Services:
Local Load Threshold: 254
PrimarySorryServer: None
SecondSorryServer: None

 Name:            Hits:         Wgt: State:   Ld: KAlive:   Conn:  DNS:         

 -----            -----         ---- ------   --- -------   -----  ----         
 A-S1             30,194        S-1  Alive    2   ICMP      0      0            
 A-S2             14,908        S-1  Alive    32  ICMP      2      0            
 A-S3             0             S-1  Down     255 ICMP      0      0            
 A-S4             0             S-1  Down     255 ICMP      0      0            

 WWW@192.168.2.6  
                  0             S-1  Alive    4   APP       0      0            

 WWW@192.168.3.6  
                  0             S-1  Alive    87  APP       0      0            
 WWW@192.168.4.6  
                  0             S-1  Alive    255 APP       0      0            

CSS-A#

Troubleshoot

There is currently no specific troubleshooting information available for this configuration.

Related Information

Updated: Jan 03, 2007
Document ID: 12590