If necessary, you can define a customized protocol filter by specifying EtherType, Logical Link Control (LLC), or Subnetwork Access Protocol (SNAP). Up to six protocols can be part of a protocol filter. To define a protocol filter:
For example: create protocol fred
The protocol name can have a maximum of 32 characters.
| etype—EtherType | The values for etype are four-digit hexadecimal numbers taken from a list maintained by the IEEE. This list can be found at the following URL: http://standards.ieee.org/regauth/ethertype/index.html. |
Note
Protocol-based VLAN (Virtual LAN) for Etype from 0x0000 to 0x05ff are not classifying as per filter. When traffic arrive with these Etypes, it is classifed to native VLAN rather protocol based vlan.| llc—LLC Service Advertising Protocol (SAP) | The values for llc are four-digit hexadecimal numbers that are created by concatenating a two-digit LLC Destination SAP (DSAP) and a two-digit LLC Source SAP (SSAP). |
| snap—EtherType inside an IEEE SNAP packet encapsulation |
The values for snap are the same as the values for etype, described previously. For example: configure protocol fred add llc feff configure protocol fred add snap 9999 |
A maximum of 16 customized protocol filters can be active at a time.
Note
For more information about SNAP for Ethernet protocol types, see TR 11802-5:1997 (ISO/IEC) [ANSI/IEEE std. 802.1H, 1997 Edition].
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