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Configuring the Switch
3-98
3
CLI – This example shows statistics for port 13.
Alcatel Mapping Adjacency Protocol (AMAP)
The AMAP protocol enables a switch to discover the topology of other AMAP-aware
devices in the network. The protocol allows each switch to determine if other
AMAP-aware switches are adjacent to it. Note that two switches are adjacent if and
only if the following two requirements are satisfied:
1. There exists a Spanning Tree path between them.
2. There exists no other AMAP-aware device between the two switches on that
Spanning Tree path.
Configuring AMAP
The AMAP protocol discovers adjacent switches by sending and receiving AMAP
“Hello” packets on active Spanning Tree ports. Each port can be defined as being in
one of three logical states of processing the AMAP "Hello" packets: discovery,
common, or passive.
Command Attributes
• AMAP Status – Enables or disables AMAP on the switch. (Default: enabled)
• Discovery – The initial state where a port transmits a “Hello” packet to detect an
adjacent switch and then waits for a response.
Console#show interfaces counters ethernet 1/13 4-139
Ethernet 1/13
Iftable stats:
Octets input: 868453, Octets output: 3492122
Unicast input: 7315, Unitcast output: 6658
Discard input: 0, Discard output: 0
Error input: 0, Error output: 0
Unknown protos input: 0, QLen output: 0
Extended iftable stats:
Multi-cast input: 0, Multi-cast output: 17027
Broadcast input: 231, Broadcast output: 7
Ether-like stats:
Alignment errors: 0, FCS errors: 0
Single Collision frames: 0, Multiple collision frames: 0
SQE Test errors: 0, Deferred transmissions: 0
Late collisions: 0, Excessive collisions: 0
Internal mac transmit errors: 0, Internal mac receive errors: 0
Frame too longs: 0, Carrier sense errors: 0
Symbol errors: 0
RMON stats:
Drop events: 0, Octets: 4422579, Packets: 31552
Broadcast pkts: 238, Multi-cast pkts: 17033
Undersize pkts: 0, Oversize pkts: 0
Fragments: 0, Jabbers: 0
CRC align errors: 0, Collisions: 0
Packet size <= 64 octets: 25568, Packet size 65 to 127 octets: 1616
Packet size 128 to 255 octets: 1249, Packet size 256 to 511 octets: 1449
Packet size 512 to 1023 octets: 802, Packet size 1024 to 1518 octets: 871