Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 65
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ServerIron ADX Advanced Server Load Balancing Guide 53
53-1002435-01
Other TCS options
2
ServerIronADX(config-rs-server1)# port http url “HEAD/”
ServerIronADX(config-rs-server1)# port ssl
ServerIronADX(config-rs-server1)# exit
ServerIronADX(config)# server cache-name cs2 3.3.3.2
ServerIronADX(config-rs-server1)# port http
ServerIronADX(config-rs-server1)# port http url “HEAD/”
ServerIronADX(config-rs-server1)# port ssl
ServerIronADX(config-rs-server1)# exit
ServerIronADX(config)# server cache-group 1
ServerIronADX(config-tc-1)# cache-name cs1
ServerIronADX(config-tc-1)# exit
ServerIronADX(config)# ip policy 1 cache tcp http global
ServerIronADX(config)# ip policy 2 cache tcp ssl global
In the following example, the cache server selection mechanism for the FTP protocol has been
changed to “hash” and is uses the same hash table as HTTP. The cache server selection
mechanism for the telnet protocol remains “least-connection” which is the default.
ServerIronADX(config)# server cache-name cs1 3.3.3.1
ServerIronADX(config-rs-server1)# port http
ServerIronADX(config-rs-server1)# port http url “HEAD/”
ServerIronADX(config-rs-server1)# port ftp
ServerIronADX(config-rs-server1)# port telnet
ServerIronADX(config-rs-server1)# exit
ServerIronADX(config)# server cache-name cs2 3.3.3.2
ServerIronADX(config-rs-server1)# port http
ServerIronADX(config-rs-server1)# port http url “HEAD/”
ServerIronADX(config-rs-server1)# port ftp
ServerIronADX(config-rs-server1)# port telnet
ServerIronADX(config-rs-server1)# exit
ServerIronADX(config)# server cache-group 1
ServerIronADX(config-tc-1)# cache-name cs1
ServerIronADX(config-tc-1)# predictor hash port ftp
ServerIronADX(config-tc-1)# exit
ServerIronADX(config)# ip policy 1 cache tcp http global
ServerIronADX(config)# ip policy 2 cache tcp ftp global
ServerIronADX(config)# ip policy 2 cache tcp telnet global
Controlling traffic distribution among cache servers
To define how requests are distributed among multiple web cache servers within a cache group,
you can use the hash-mask <destination-ip-mask> <source-ip-mask> CLI command at the
transparent cache level. The ServerIron ADX uses the source and destination IP addresses as hash
values. By default, the destination IP mask is 255.255.255.0, and the source IP mask is 0.0.0.0
which means only first three octets of destination ip are used to calculate the hash. All other
services (known or unknown port) including SSL uses the predictor which is by default least
connection.
The hash mechanism minimizes duplication of content on the cache servers by ensuring that a
particular web site is always cached on the same cache server.
- ServerIron ADX 1
- Document History 2
- Contents 5
- About This Document 9
- Command syntax conventions 10
- Notice to the reader 11
- Related publications 11
- Web access 12
- E-mail and telephone access 12
- SIP Server Load Balancing 13
- SIP terminology 16
- SIP message headers 17
- Max-Forwards 18
- Sample deployment topologies 19
- RINGING F4 21
- Configuring SIP SLB 23
- Configuring health check 26
- Example 29
- Load Balancing SIP over TCP 31
- Call-ID3 33
- Call-ID1 34
- Rehashing the SIP hash table 38
- Debug commands 40
- SIP SLB command reference 42
- Sample configuration 43
- Transparent Cache Switching 45
- Stateful caching 47
- Sample Deployment Topologies 48
- TCS with spoofing 49
- TCS with destination NAT 49
- TCS with Source NAT 50
- VIPs with reverse proxy 51
- Configuring TCS 52
- Defining a cache server 53
- Enabling TCS 56
- Other TCS options 57
- Cache Route Optimization 58
- Enabling Destination NAT 62
- Configuring Source NAT 62
- Examples 64
- Distribution algorithm 66
- • Maximum connection rate 72
- Enabling FastCache 73
- Enabling remote cache 73
- Shutting down a cache server 74
- Passive FTP for TCS 75
- Traffic flow of passive FTP 76
- Topologies supported 76
- High availability support 77
- ServerIron ADX 2 78
- Policy based caching 79
- Show commands 81
- Content aware cache switching 82
- Setting up the CSW policies 84
- Configuring the cache servers 85
- This field... Displays 91
- Displaying cache information 95
- TCS information (Continued) 96
- Sample configurations 98
- Applying IP policies 99
- Defining the caches 99
- Defining the cache groups 100
- 53-1002435-01 101
- Policy-based caching 102
- Asymmetric TCS (FastCache) 103
- Policy-based cache failover 105
- TCS with reverse proxy 107
- Layer 3 TCS 109
- Basic TCS configuration 110
- Commands for ServerIron ADX A 111
- Commands for ServerIron ADX B 112
- Internet 114
- 10.10.20.104 114
- 10.10.20.102 114
- Router NI1 117
- Router NI2 117
- OSPF Area 0 117
- Commands for Router NI2 121
- Active-standby TCS 125
- Configuring Router R1 126
- Configuring ServerIron ADX A 126
- Configuring ServerIron ADX B 127
- NetCache servers 128
- NetCache C720 cache server 128
- TABLE 9 Hashing methods 130
- Parsing the host string 133
- Force rehash 136
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