
Configuring Traffic Filters and Protocol Prioritization
3-6
Specifying a SRB Criterion Range
If you create a filter that includes a Source or Destination NetBIOS Name (Source
Routing protocol), you enter the NetBIOS name as the ASCII equivalent of the
first 15 characters of the name. If the name has fewer than 15 characters, use
ASCII spaces (0x20) to pad the name to 15 characters.
Refer to Chapter 5 for information about entering SAP and MAC address criteria.
User-Defined Source Routing Criteria
In addition to the predefined filter criteria, you can create SRB traffic filters with
user-defined criteria by specifying an offset and length to these reference fields in
the source routing header:
Source Routing Actions
In addition to the Accept, Drop, and Log actions common to all protocols, Source
Routing supports two additional actions:
• Direct IP Explorers
Specifies that any explorer frame that matches the filter will be sent to some
number of IP addresses. You are required to specify these IP addresses.
For this action to work, IP encapsulation must be configured on the filter’s
interface. If IP encapsulation is not configured and a frame matches the filter,
the frame will be flooded as if no filter existed.
• Forward to Circuits
Specifies that any frame that matches the filter will be forwarded to certain
circuits that you specify.
Reference Field Description
NEXT_RING Points to the first byte of the Next Ring field
HEADER_START Points to the first byte of the Destination MAC address
DATA_LINK Points to the first byte of the DATA_LINK reference field
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