Cisco Systems 3750E Manual De Usuario
6-6
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
Chapter 6 Clustering Switches
Planning a Switch Cluster
, the cluster command switch has ports assigned to VLANs 16 and 62. The CDP hop count
is three. The cluster command switch discovers switches 11, 12, 13, and 14 because they are within three
hops from the edge of the cluster. It does not discover switch 15 because it is four hops from the edge
of the cluster.
hops from the edge of the cluster. It does not discover switch 15 because it is four hops from the edge
of the cluster.
Figure 6-1
Discovery Through CDP Hops
Discovery Through Non-CDP-Capable and Noncluster-Capable Devices
If a cluster command switch is connected to a non-CDP-capable third-party hub (such as a non-Cisco
hub), it can discover cluster-enabled devices connected to that third-party hub. However, if the cluster
command switch is connected to a noncluster-capable Cisco device, it cannot discover a cluster-enabled
device connected beyond the noncluster-capable Cisco device.
hub), it can discover cluster-enabled devices connected to that third-party hub. However, if the cluster
command switch is connected to a noncluster-capable Cisco device, it cannot discover a cluster-enabled
device connected beyond the noncluster-capable Cisco device.
Command device
Member
device 10
device 10
Member
device 8
device 8
Member
device 9
device 9
VLAN 62
Edge of
cluster
cluster
VLAN 16
101321
Device 11
candidate
device
Candidate
devices
devices
Device 12
Device 13
Device 14
Device 15