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C
HAPTER
15
| Basic Administration Protocols
Connectivity Fault Management
– 450 –
Multiple domains at the same maintenance level cannot have an MA on
the same VLAN (see
"Configuring CFM Maintenance Domains" on
).
Before removing an MA, first remove the MEPs assigned to it (see
"Configuring Maintenance End Points" on page 454
).
For a detailed description of the MIP types, refer to the Command
Usage section under
"Configuring CFM Maintenance Domains" on
.
Configuring Detailed Settings for a Maintenance Association
CCMs are multicast periodically by a MEP in order to discover other
MEPs in the same MA, and to assure connectivity to all other MEPs/MIPs
in the MA.
Each CCM received is checked to verify that the MEP identifier field sent
in the message does not match its own MEP ID, which would indicate a
duplicate MEP or network loop. If these error types are not found, the
CCM is stored in the MEP’s local database until aged out.
If a maintenance point fails to receive three consecutive CCMs from any
other MEP in the same MA, a connectivity failure is registered.
If a maintenance point receives a CCM with an invalid MEPID or MA
level or an MA level lower than its own, a failure is registered which
indicates a configuration error or cross-connect error (i.e., overlapping
MAs).
The interval at which CCMs are issued should be configured to detect
connectivity problems in a timely manner, as dictated by the nature and
size of the MA.
The maintenance of a MIP CCM database by a MIP presents some
difficulty for bridges carrying a large number of Service Instances, and
for whose MEPs are issuing CCMs at a high frequency. For this reason,
slower CCM transmission rates may have to be used.
P
ARAMETERS
These parameters are displayed:
Creating a Maintenance Association
MD Index
– Domain index. (Range: 1-65535)
MA Index
– MA identifier. (Range: 0-4094)
MA Name
– MA name. (Range: 1-45 alphanumeric characters)
Each MA name must be unique within the CFM-managed network.
Primary VLAN
– Service VLAN ID. (Range: 1-4093)
This is the VLAN through which all CFM functions are executed for this
MA.
Summary of Contents for DG-FS4526E
Page 4: ...ABOUT THIS GUIDE 4...
Page 34: ...CONTENTS 34...
Page 50: ...TABLES 50...
Page 52: ...SECTION I Getting Started 52...
Page 62: ...CHAPTER 1 Introduction System Defaults 62...
Page 80: ...CHAPTER 2 Initial Switch Configuration Managing System Files 80...
Page 82: ...SECTION II Web Configuration 82...
Page 100: ...CHAPTER 3 Using the Web Interface Navigating the Web Browser Interface 100...
Page 128: ...CHAPTER 4 Basic Management Tasks Resetting the System 128...
Page 166: ...CHAPTER 5 Interface Configuration VLAN Trunking 166...
Page 198: ...CHAPTER 6 VLAN Configuration Configuring VLAN Mirroring 198...
Page 516: ...CHAPTER 17 IP Services Displaying the DNS Cache 516...
Page 562: ...CHAPTER 19 Using the Command Line Interface CLI Command Groups 562...
Page 652: ...CHAPTER 22 SNMP Commands 652...
Page 660: ...CHAPTER 23 Remote Monitoring Commands 660...
Page 714: ...CHAPTER 24 Authentication Commands Management IP Filter 714...
Page 802: ...CHAPTER 27 Interface Commands 802...
Page 824: ...CHAPTER 29 Port Mirroring Commands RSPAN Mirroring Commands 824...
Page 846: ...CHAPTER 32 Address Table Commands 846...
Page 874: ...CHAPTER 33 Spanning Tree Commands 874...
Page 886: ...CHAPTER 34 ERPS Commands 886...
Page 928: ...CHAPTER 35 VLAN Commands Configuring Voice VLANs 928...
Page 942: ...CHAPTER 36 Class of Service Commands Priority Commands Layer 3 and 4 942...
Page 998: ...CHAPTER 38 Multicast Filtering Commands Multicast VLAN Registration 998...
Page 1022: ...CHAPTER 39 LLDP Commands 1022...
Page 1064: ...CHAPTER 40 CFM Commands 1064...
Page 1084: ...CHAPTER 42 Domain Name Service Commands 1084...
Page 1090: ...CHAPTER 43 DHCP Commands DHCP Client 1090...
Page 1122: ...CHAPTER 44 IP Interface Commands IPv6 Interface 1122...
Page 1124: ...SECTION IV Appendices 1124...
Page 1130: ...APPENDIX A Software Specifications Management Information Bases 1130...
Page 1152: ...COMMAND LIST 1152...
Page 1161: ......
Page 1162: ...DG FS4526E 042012 HW R01...