Spanning Tree Map; Procedure: View The Spanning Tree Map; Ethernet Performance And Maintenance Screens; Figure 9-24 The Spanning Tree Map On The Circuit Screen - Cisco 15454-TCC - Network Processor Card Operation Manual

Ethernet Performance and Maintenance Screens

Table 9-8
Column
Priority
Bridge max age
Bridge Hello Time
Bridge Forward Delay 15 seconds

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

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.
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
Cisco ONS 15454 Installation and Operations Guide
9-28
Spanning Tree Configuration
Default Value
32768
20 seconds
2 seconds
(Figure 9-24), double-click an Ethernet circuit.
"Spanning Tree Parameters" section on page
Value Range
0 - 65535
6 - 40 seconds
1 - 10 seconds
4 - 30 seconds
9-27.
Chapter 9 Ethernet Operation
November 2001