Cisco Cisco Packet Data Gateway (PDG) Ratgeber Für Administratoren
System Settings
Configuring ASR 5000 Link Aggregation ▀
Cisco ASR 5000 System Administration Guide ▄
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The aggregator and each MAC share the same MAC address, which means the MAC has no need to parse two different
unicast MAC addresses.
unicast MAC addresses.
Frame distribution uses an algorithm to distribute frames among MACs that prevents both the mis-ordering of frames
belonging to the same “conversation,” and frame duplication.
belonging to the same “conversation,” and frame duplication.
XGLC Link Aggregation
Because the XGLC is a full-height card that requires top and bottom card slots, link aggregation takes place horizontally
within ports on different XGLCs.
within ports on different XGLCs.
Link Aggregation Control
One port in an aggregation group is configured as a master so that all traffic (except control traffic) in the aggregation
group logically passes through this port. It is recommended (although not required) that you set up the master first by
managing card/slot/ports, and unset last.
group logically passes through this port. It is recommended (although not required) that you set up the master first by
managing card/slot/ports, and unset last.
The following command creates link aggregation group N with port slot#/port# as master. Only one master port is
allowed for a group. N must be in the range of [1...1023].
allowed for a group. N must be in the range of [1...1023].
configure
port ethernet slot#/port#
link-aggregation master group N
exit
Important:
Link Aggregation Control Protocol (LACP) starts running only when the master port is enabled.
Use the following command to add a port as a member of the link aggregation group number
N
only if the master port is
assigned. Otherwise, it is added to the group when the master port is assigned:
port ethernet slot#/port#
link-aggregation member group N
exit
Important:
The VPN can only bind the master port, and a VLAN can only be created on the master port. A
failure message is returned if you attempt to bind to a link aggregation member port.
Two redundant line cards and their controlling packet services card function as a system; this allows loopback
addressing between vertical slots. Each system that participates in link aggregation has a unique system ID that consists
of a two-byte priority (where the lowest number [0] has the highest priority) and a six-byte MAC address derived from
the first port’s MAC address.
addressing between vertical slots. Each system that participates in link aggregation has a unique system ID that consists
of a two-byte priority (where the lowest number [0] has the highest priority) and a six-byte MAC address derived from
the first port’s MAC address.
The following command sets the system priority used to form the system ID.
P
can be one of the following options:
a hexadecimal number in the range [0x0000..0xFFFF, default = 0x8000]
an integer from 0 through 65535