Supported Cisco Switches
Cisco ME 3400 Series Ethernet Access Switches
117
Cisco Active Network Abstraction VNE Reference
OL-15002-01
Supported Topologies for Cisco ME 3400 Series Ethernet Access Switches
Table128 Supported Topologies for Cisco ME 3400 Series Ethernet Access Switches
Topology Type
Topology Discovery
Technique
Topology Verification
Technique Additional Information
Physical Layer CDP or static Physical layer
counters or CDP or
static
By default the physical layer does not have specific
techniques for discovery.
Special cases are:
•Ports from the same device will not be connected.
•In Cisco devices, if enabled, CDP will be used.
•Static topology may be used in the physical layer.
CDP (Cisco Discovery Protocol):
For Cisco devices if CDP is enabled, the CDP technique has
higher priority and it is the only one used for discovery and
verification. This include any upper layer techniques such as
VC related techniques in ATM or MAC in Ethernet.
In this technique the matching criteria is the CDP neighboring
information.
Physical Layer Counters:
Based on the port traffic signature, using Octet based, or Octet
and Packet based traffic.
You can create a static link between managed network
elements by selecting the two end ports of the network
elements. To create a static topological link, select the exact
location of the two end ports (at both ends of the link).
For information on creating a Static link, see Cisco Active
Network Abstraction 4.0.2 User and Administration Guide on
Cisco.com:
http://www.cisco.com/en/US/products/ps6776/products_user
_guide_list.html
Ethernet MAC address Ethernet counters •MAC: Ethernet port MAC is determined using bridge and
ARP tables. This technique discovers links between
routers and links between router and switch. It does not
discover links between switches.
•Ethernet Counters: Based on the unicast packets traffic
signature.
MPLS IP information IP information In this technique, the IP address of this multiple MPLS
interfaces are checked to be in the same subnet
BGP BGP information BGP information In this technique the following BGP information is used as
matching criteria:
•Local/Remote BGP Identifier
•Same Autonomous System