Web Management Guide
Table Of Contents
- How to Use This Guide
- Contents
- Figures
- Tables
- Getting Started
- Web Configuration
- Using the Web Interface
- Basic Management Tasks
- Displaying System Information
- Displaying Hardware/Software Versions
- Configuring Support for Jumbo Frames
- Displaying Bridge Extension Capabilities
- Managing System Files
- Setting the System Clock
- Configuring The Console Port
- Configuring Telnet Settings
- Displaying CPU Utilization
- Displaying Memory Utilization
- Resetting the System
- Interface Configuration
- VLAN Configuration
- Address Table Settings
- Spanning Tree Algorithm
- Congestion Control
- Class of Service
- Layer 2 Queue Settings
- Layer 3/4 Priority Settings
- Setting Priority Processing to IP Precedence/DSCP or CoS
- Mapping Ingress DSCP Values to Internal DSCP Values
- Mapping CoS Priorities to Internal DSCP Values
- Mapping Internal DSCP Values to Egress CoS Values
- Mapping IP Precedence Values to Internal DSCP Values
- Mapping IP Port Priority to Internal DSCP Values
- Quality of Service
- Security Measures
- AAA Authentication, Authorization and Accounting
- Configuring User Accounts
- Web Authentication
- Network Access (MAC Address Authentication)
- Configuring HTTPS
- Configuring the Secure Shell
- Access Control Lists
- Showing TCAM Utilization
- Setting the ACL Name and Type
- Configuring a Standard IPv4 ACL
- Configuring an Extended IPv4 ACL
- Configuring a Standard IPv6 ACL
- Configuring an Extended IPv6 ACL
- Configuring a MAC ACL
- Configuring an ARP ACL
- Binding a Port to an Access Control List
- Configuring ACL Mirroring
- Showing ACL Hardware Counters
- ARP Inspection
- Filtering IP Addresses for Management Access
- Configuring Port Security
- Configuring 802.1X Port Authentication
- IPv4 Source Guard
- IPv6 Source Guard
- DHCP Snooping
- Basic Administration Protocols
- Configuring Event Logging
- Link Layer Discovery Protocol
- Simple Network Management Protocol
- Configuring Global Settings for SNMP
- Setting the Local Engine ID
- Specifying a Remote Engine ID
- Setting SNMPv3 Views
- Configuring SNMPv3 Groups
- Setting Community Access Strings
- Configuring Local SNMPv3 Users
- Configuring Remote SNMPv3 Users
- Specifying Trap Managers
- Creating SNMP Notification Logs
- Showing SNMP Statistics
- Remote Monitoring
- Connectivity Fault Management
- Configuring Global Settings for CFM
- Configuring Interfaces for CFM
- Configuring CFM Maintenance Domains
- Configuring CFM Maintenance Associations
- Configuring Maintenance End Points
- Configuring Remote Maintenance End Points
- Transmitting Link Trace Messages
- Transmitting Loop Back Messages
- Transmitting Delay- Measure Requests
- Displaying Local MEPs
- Displaying Details for Local MEPs
- Displaying Local MIPs
- Displaying Remote MEPs
- Displaying Details for Remote MEPs
- Displaying the Link Trace Cache
- Displaying Fault Notification Settings
- Displaying Continuity Check Errors
- UDLD Configuration
- Multicast Filtering
- Overview
- IGMP Protocol
- Layer 2 IGMP (Snooping and Query for IPv4)
- Configuring IGMP Snooping and Query Parameters
- Specifying Static Interfaces for an IPv4 Multicast Router
- Assigning Interfaces to IPv4 Multicast Services
- Setting IGMP Snooping Status per Interface
- Filtering IGMP Query Packets
- Displaying Multicast Groups Discovered by IGMP Snooping
- Displaying IGMP Snooping Statistics
- Filtering and Throttling IGMP Groups
- MLD Snooping (Snooping and Query for IPv6)
- Layer 3 IGMP (Query used with Multicast Routing)
- IP Configuration
- IP Services
- General IP Routing
- Unicast Routing
- Overview
- Configuring the Routing Information Protocol
- Configuring General Protocol Settings
- Clearing Entries from the Routing Table
- Specifying Network Interfaces
- Specifying Passive Interfaces
- Specifying Static Neighbors
- Configuring Route Redistribution
- Specifying an Administrative Distance
- Configuring Network Interfaces for RIP
- Displaying RIP Interface Settings
- Displaying Peer Router Information
- Resetting RIP Statistics
- Configuring the Open Shortest Path First Protocol (Version 2)
- Defining Network Areas Based on Addresses
- Configuring General Protocol Settings
- Displaying Administrative Settings and Statistics
- Adding an NSSA or Stub
- Configuring NSSA Settings
- Configuring Stub Settings
- Displaying Information on NSSA and Stub Areas
- Configuring Area Ranges (Route Summarization for ABRs)
- Redistributing External Routes
- Configuring Summary Addresses (for External AS Routes)
- Configuring OSPF Interfaces
- Configuring Virtual Links
- Displaying Link State Database Information
- Displaying Information on Neighboring Routers
- Specifying Passive Interfaces
- Multicast Routing
- Appendices
- Glossary
- Index
Chapter 12
| Basic Administration Protocols
Connectivity Fault Management
– 411 –
Transmitting Link
Trace Messages
Use the Administration > CFM (Transmit Link Trace) page to transmit link trace
messages (LTMs). These messages can isolate connectivity faults by tracing the
path through a network to the designated target node (i.e., a remote maintenance
end point).
Command Usage
◆
LTMs can be targeted to MEPs, not MIPs. Before sending a link trace message,
be sure you have configured the target MEP for the specified MA (see
"Configuring Remote Maintenance End Points").
◆
If MAC address of target MEP has not been learned by any local MEP, then the
linktrace may fail. Use the Show Remote MEP page (see "Displaying Remote
MEPs") to verify that a MAC address has been learned for the target MEP.
◆
LTMs are sent as multicast CFM frames, and forwarded from MIP to MIP, with
each MIP generating a link trace reply, up to the point at which the LTM reaches
its destination or can no longer be forwarded.
◆
LTMs are used to isolate faults. However, this task can be difficult in an Ethernet
environment, since each node is connected through multipoint links. Fault
isolation is even more challenging since the MAC address of the target node
can age out in several minutes. This can cause the traced path to vary over time,
or connectivity lost if faults cause the target MEP to be isolated from other
MEPs in an MA.
◆
When using the command line or web interface, the source MEP used by to
send a link trace message is chosen by the CFM protocol. However, when using
SNMP, the source MEP can be specified by the user.
◆
Parameters controlling the link trace cache, including operational state, entry
hold time, and maximum size can be configured on the Configure Global page
(see "Configuring Global Settings for CFM").
Parameters
These parameters are displayed:
◆
MD Index
– Domain index. (Range: 1-65535)
◆
MA Index
– MA identifier. (Range: 1-2147483647)
◆
Source MEP ID
– The identifier of a source MEP that will send the link trace
message. (Range: 1-8191)
◆
Target
■
MEP ID
– The identifier of a remote MEP that is the target of a link trace
message. (Range: 1-8191)
■
MAC Address
– MAC address of a remote MEP that is the target of a link
trace message. This address can be entered in either of the following
formats: xx-xx-xx-xx-xx-xx or xxxxxxxxxxxx