Web Management Guide-R04
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
- Configuring CPU Guard
- 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
- VoIP Traffic Configuration
- 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
- Filtering IP Addresses for Management Access
- Configuring Port Security
- Configuring 802.1X Port Authentication
- DoS Protection
- DHCPv4 Snooping
- DHCPv6 Snooping
- IPv4 Source Guard
- IPv6 Source Guard
- ARP Inspection
- Application Filter
- Basic Administration Protocols
- Configuring Event Logging
- Link Layer Discovery Protocol
- Simple Network Management Protocol
- Configuring Global Settings for SNMP
- Setting Community Access Strings
- Setting the Local Engine ID
- Specifying a Remote Engine ID
- Setting SNMPv3 Views
- Configuring SNMPv3 Groups
- Configuring Local SNMPv3 Users
- Configuring Remote SNMPv3 Users
- Specifying Trap Managers
- Creating SNMP Notification Logs
- Showing SNMP Statistics
- Remote Monitoring
- Switch Clustering
- Setting a Time Range
- Ethernet Ring Protection Switching
- OAM Configuration
- 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
- OAM Configuration
- UDLD Configuration
- LBD Configuration
- Smart Pair Configuration
- Multicast Filtering
- Overview
- Layer 2 IGMP (Snooping and Query for IPv4)
- Configuring IGMP Snooping and Query Parameters
- Specifying Static Interfaces for a Multicast Router
- Assigning Interfaces to Multicast Services
- Setting IGMP Snooping Status per Interface
- Filtering IGMP Query Packets and Multicast Data
- Displaying Multicast Groups Discovered by IGMP Snooping
- Displaying IGMP Snooping Statistics
- Filtering and Throttling IGMP Groups
- MLD Snooping (Snooping and Query for IPv6)
- Multicast VLAN Registration for IPv4
- Multicast VLAN Registration for IPv6
- Basic IP Functions
- IP Configuration
- General IP Routing
- IP Services
- Appendices
- Glossary
Chapter 13
| Basic Administration Protocols
Connectivity Fault Management
– 526 –
hierarchy. This option is used to hide the structure of network at the lowest
domain level.
The diagnostic functions provided by CFM can be used to detect connectivity
failures between any pair of MEPs in an MA. Using MIPs allows these failures to
be isolated to smaller segments of the network.
Allowing the CFM to generate MIPs exposes more of the network structure to
users at higher domain levels, but can speed up the process of fault detection
and recovery. This trade-off should be carefully considered when designing a
CFM maintenance structure.
Also note that while MEPs are active agents which can initiate consistency
check messages (CCMs), transmit loop back or link trace messages, and
maintain the local CCM database, MIPs, on the other hand, are passive agents
which can only validate received CFM messages, and respond to loop back and
link trace messages.
The MIP creation method defined for an MA (see "Configuring CFM
Maintenance Associations") takes precedence over the method defined on the
CFM Domain List.
Configuring Fault Notification
◆ A fault alarm can generate an SNMP notification. It is issued when the MEP fault
notification generator state machine detects that the configured time period
(MEP Fault Notify Alarm Time) has passed with one or more defects indicated,
and fault alarms are enabled at or above the specified priority level (MEP Fault
Notify Lowest Priority). The state machine transmits no further fault alarms until
it is reset by the passage of a configured time period (MEP Fault Notify Reset
Time) without a defect indication. The normal procedure upon receiving a fault
alarm is to inspect the reporting MEP’s managed objects using an appropriate
SNMP software tool, diagnose the fault, correct it, re-examine the MEP’s
managed objects to see whether the MEP fault notification generator state
machine has been reset, and repeat those steps until the fault is resolved.
◆ Only the highest priority defect currently detected is reported in the fault
alarm.
Priority levels include the following options:
Table 37: Remote MEP Priority Levels
Priority Level Level Name Description
1allDefAll defects.
2 macRemErrXcon DefMACstatus, DefRemoteCCM, DefErrorCCM, or
DefXconCCM.
3 remErrXcon DefErrorCCM, DefXconCCM or DefRemoteCCM.
4 errXcon DefErrorCCM or DefXconCCM.