Cisco Systems 15454M6DC Manuel D’Utilisation
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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 9 Ethernet Operation
Ethernet Performance and Maintenance Screens
9.5.4 Spanning Tree Map
The Circuit screen shows forwarding spans and blocked spans on the spanning tree map.
Procedure: View the Spanning Tree Map
Step 1
On the circuit screen (
), double-click an Ethernet circuit.
Figure 9-24 The spanning tree map on the circuit screen
Note
Green represents forwarding spans and purple represents blocked (protect) spans. If you have a
packet ring configuration, at least one span should be purple.
packet ring configuration, at least one span should be purple.
9.6 Ethernet Performance and Maintenance Screens
CTC provides Ethernet performance information, including line-level parameters, the amount of port
bandwidth used, and historical Ethernet statistics. CTC also includes spanning tree information, MAC
address information, and the amount of circuit bandwidth used. To view spanning tree information, see
the
bandwidth used, and historical Ethernet statistics. CTC also includes spanning tree information, MAC
address information, and the amount of circuit bandwidth used. To view spanning tree information, see
the
Table 9-8
Spanning Tree Configuration
Column
Default Value
Value Range
Priority
32768
0 - 65535
Bridge max age
20 seconds
6 - 40 seconds
Bridge Hello Time
2 seconds
1 - 10 seconds
Bridge Forward Delay 15 seconds
4 - 30 seconds