CANOGA PERKINS 9145E NID Software Version 3.1 - Manual (Page 83)

9145E NID Software User’s Manual Port Information
Port Configuration
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• Statistics - Each time the 9145E filters a frame, the Filtered Frame count on the Layer 2
Frame Type Statistics screen is incremented. See “Layer 2 Statistics” on page 75.
• System Log and syslog - All filter events are logged in the system log and syslog. See
“System Log” on page 84 and “SYSLOG Client Configuration” on page 36.
• .cap file - The default setting in the .cap file will be "Operator." If you logged in with an
access level lower than what is in the .cap file, you will not be able to modify filters. To
change the access level, see section 1.4 Feature Access Level Configuration. For more
information about the .cap file, see “Three Levels of Security” on page 27.
• VLAN rules - All frames that are not filtered and are not sent to the CPU will be subject to
the VLAN rules as regular service frames.
5.2.4.1 L2CP Service Frame Processing Options in MEN
The MEF 10.2 specification in Section 7.13 UNI Layer 2 Control Protocol Processing Service
Attribute
lists all processing options in a Metro Ethernet Network (MEN):
• Discard The MEN discards all ingress service frames carrying the L2CP and does not
generate any egress service frames carrying the L2CP. When this alternative is in effect,
an EVC cannot process the Layer 2 Control Protocol.
• Peer The MEN acts as a peer of the CE (Customer Equipment) in the operation of the
Layer 2 Control Protocol. From the CE point of view, the MEN is a single device running
the Layer 2 Control Protocol.
•
Pass to EVC
The disposition of the Layer 2 Control Protocol is determined by the L2CP
attribute of the EVC, which is either tunneled or discarded. The EVC associated with
L2CP is determined by the CE-VLAN ID of the Service Frame and CE-VLAN ID/EVC
Map.
NOTE: If you want L2CP service frames to be tunneled, you must configure all
UNIs in the EVC to pass the L2CP to the EVC.
•
Tunnel
This is an option of Pass to EVC in which the MEN carries the L2CP
across the service provider network without being processed and delivers it to the
appropriate UNI or UNIs. You may want to use tunneling if you attach bridges to
all UNIs and therefore BPDU (Bridge Protocol Data Units) need to be carried
across the network. When using tunneling, the service frame at each egress UNI
must be identical to the corresponding ingress service frame.
•
Discard
See description above.
• Peer and Pass to EVC Some service frames carrying the L2CP are processed by the
MEN as a peer while other frames carrying the L2CP are passed to the EVC. The method
for identifying that a service frame is to be peered or passed to the EVC must be specified
for each service. For example, different destination MAC addresses might be used to indi-
cate the handling of a service frame carrying the L2CP.
5.2.4.2 How the 9145E Handles L2CP Service Frames with Port Filters
If the port filter is enabled in a specific L2CP, the L2CP service frame is discarded as defined in
MEF10.2. If the port filter is disabled for a specific service frame then the L2CP service frame is