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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter 9 Configuring EtherChannels
EVC On Port-Channel
Keepalive set (10 sec)
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 IP multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
EVC On Port-Channel
An EtherChannel bundles individual Ethernet links into a single logical link that provides the aggregate
bandwidth of up to eight physical links.The EVC EtherChannel feature provides support for
EtherChannels on Ethernet Virtual Connection Services (EVCS) service instances.
The EVC EtherChannel feature supports MPBE, local connect, and xconnect service types.
Load balancing is accomplished on a Ethernet flow point (EFP) basis where a number of EFPs exclusively
pass traffic through member links. In a default load balancing, you have no control over how the EFPs
are grouped together, and sometimes the EFP grouping may not be ideal. To avoid this, use manual load
balancing to control the EFP grouping.
Restrictions for EVC EtherChannel
The following restrictions apply to EVC EtherChannel:
• Bridge-domains, EVCs, and IP subinterfaces are allowed over the port-channel interface and the
main interface.
• If you configure a physical port as part of a channel group, you cannot configure EVCs under that
physical port.
• If port-channel is configured on an MPLS core, the encapsulation ID should be the same as the
bridge domain.
• A physical port that is part of an EVC port-channel cannot have EVC configuration.
• Statically configuring port-channel membership with LACP is not supported.
• You can apply QoS policies under EVCs on a port-channel.
• You cannot use the police percent commands on EVC port-channels in flat policy-maps or in parent
of HQoS policy-maps.