Alteon Application Switch Operating System Application Guide
Layer 7 String Handling
Document ID: RDWR-ALOS-V2900_AG1302 807
When a client request is received with www.a.com in the Host Header and .jpg in the URL, the
request is load balanced between Server 1 and Server 2. For this configuration to work properly, you
must assign multiple strings (a Host Header string and a URL string) for each real server.
String Case Insensitivity
By default, Alteon supports case-sensitive matching when performing lookup of Layer 7 string
content.
For example, if the following strings were configured for a real server, any incoming request
containing "GET /Default.asp" would not bind to string 1 because of the capitalized D in
Default.asp:
String case sensitivity may be disabled, so that any incoming request containing GET /Default.asp,
GET /DEFAULT.ASP, and other case combinations, all map to string 1.
Configurable HTTP Methods
Various types of HTTP methods to be processed by the Layer 7 engine are configurable.
To view the currently supported HTTP methods
Server 3 Customer A Dynamic .cgi files
Server 4 Customer B Static .jpg files
Server 5 Customer B Dynamic .cgi files
1. default.asp
2. search.asp
>> # /cfg/slb/layer7/slb/case disable
>> # /cfg/slb/layer7/slb/cur
HTTP method types:
1 GET 2 POST
3 HEAD 4 BCOPY
5 BMOVE 6 BDELETE
7 BPROPPATCH 8 COPY
9 CONNECT 10 DELETE
11 LINK 12 MKCOL
13 MOVE 14 OPTIONS
15 POLL 16 PUT
17 PROPFIND 18 PROPPATCH
19 SEARCH 20 SUBSCRIBE
21 TRACE 22 UNLINK
Table 69: Real Server Content
Server Customer Content
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