CANOGA PERKINS 9145E NID Software Version 4.10 - Manual (Page 155)

Port Information 9145E NID Software User’s Manual
Port Configuration
143
ing, 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
passed to EVC as defined in MEF10.2. The 9145E has the capability to peer some L2CP service
frames such as link OAM.
The 9145E can detect and handle any of the L2CP service frames listed in Table 5-1, regardless
of whether the frame is tagged or untagged.
The 9145E detects L2CP service frames by checking the MAC destination address, Ethertype,
and Subtype (if it exists) fields of the frame. This combination identifies the type of L2CP service
frame. For two service frame types, STP (STP, MSTP, RSTP) and Provider Bridge, the 9145E
only checks the MAC destination address.
Table 5-1. L2CP Service Frame Protocol Identification Fields
See “L2CP Service Frame Processing Options in MEN” on page 142 for more information.
If a service frame does not contain the values listed in the Table 5-1 or the filter is not enabled,
the 9145E handles the frame according to the same VLAN rules/Port Base VLAN control as any
other packet. Packets entering the NID will be discarded and not forwarded or sent to the CPU,
when the MAC Destination Address matches the corresponding filter in the table and the
EtherType and SubType fields inside the packet also match.
Example 1:
Let’s say you set enable the STP, MSTP, RSTP port filter.
Layer 2 Control Protocol MAC Dest. Address Ethertype/Sub-type
STP, MSTP, RSTP 01-80-C2-00-00-00 N/A
Provider Bridge 01-80-C2-00-00-08 N/A
PAUSE 01-80-C2-00-00-01 0x8808
LACP 01-80-C2-00-00-02 0x8809 / 0x01
Link OAM 01-80-C2-00-00-02 0x8809 / 0x03
Port Authentication 01-80-C2-00-00-03 0x888E
E-LMI 01-80-C2-00-00-07 0x88EE
LLDP 01-80-C2-00-00-0E 0x88CC
MVRP 01-80-C2-00-00-21 0x88F5
MMRP 01-80-C2-00-00-20 0x88F6