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CHAPTER 3
INTRODUCTION TO CLI
VLAN. This may require non-standard devices to pass traffic between different VLANs in order to encompass all the
devices participating in a specific protocol. This kind of configuration deprives users of the basic benefits of VLANs,
including security and easy accessibility.
To avoid these problems, you can configure this switch with protocol-based VLANs that divide the physical network
into logical VLAN groups for each required protocol. When a frame is received at a port, its VLAN membership can
then be determined based on the protocol type being used by the inbound packets.
Parameters:
protocol { { eth2 { <etype> | arp | ip | ipx | at } } | { snap { <oui> | rfc-1042 | snap-8021h } <pid> } | { llc <dsap>
<ssap> } }: There are three frame types available for selection; these are “Ethernet”, “SNAP”, and “LLC”. The value
field will need to be changed accordingly.
eth2 (Ethernet):
Ether Type (etype) value. By default, it is set to 0x0800. The range allowed is 0x0600 to
0xffff.
SNAP:
This includes OUI (Organizationally Unique Identifier) and PID (Protocol ID) values.
OUI:
A value in the format of xx-xx-xx where each pair (xx) in the string is a hexadecimal value in the
ranges of 0x00-0xff.
PID:
If the OUI is hexadecimal 000000, the protocol ID is the Ethernet type field value for the protocol
running on top of SNAP. If the OUI is that of a particular organization, the protocol ID is a value
assigned by that organization to the protocol running on top of SNAP. In other words, if value of the
OUI field is 00-00-00, then value of the PID will be etherType (0x0600-0xffff), and if value of the OUI is
other than 00-00-00, then valid value of the PID will be any value from 0x0000 to 0xffff.
LLC (Logical Link Control):
This includes DSAP (Destination Service Access Point) and SSAP (Source
Service Access Point) values. By default, the value is 0xff. Valid range is 0x00 to 0xff.
group <grp_id>:
Indicate the descriptive name for this entry. This field only allows 16 alphabet characters (a-
z; A-Z) or integers (0-9).
Example:
Set VLAN protocol to eth2 0x88a8.
Negation:
(config)# no vlan protocol { { eth2 { <etype> | arp | ip | ipx | at } } | { snap { <oui> | rfc-1042 | snap-8021h }
<pid> } | { llc <dsap> <ssap> } } group <grp_id>
Show:
# show vlan protocol [ eth2 { <etype> | arp | ip | ipx | at } ] [ snap { <oui> | rfc-1042 | snap-8021h } <pid> ] [ llc
<dsap> <ssap> ]
3.9.52 (config)# voice vlan
3.9.52.1 (config)# voice vlan
Syntax:
(config)# voice vlan
Explanation:
Enable voice vlan for voice traffic.
Negation:
(config)# no voice vlan
# config t
(config)# vlan protocol eth2 0x88a8 group a12
Содержание MSW-4424C Series
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