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Discovery and Link Monitoring
The discovery process is triggered automatically when OAM is enabled on the interface.
The discovery process permits Ethernet interfaces to discover and monitor the peer
on the link if it also supports the IEEE 802.3ah standard. You can specify the discovery
mode used for IEEE 802.3ah OAM support. In active mode, the interface discovers and
monitors the peer on the link if the peer also supports IEEE 802.3ah OAM functionality.
In passive mode, the peer initiates the discovery process. After the discovery process
has been initiated, both sides participate in discovery. The switch performs link
monitoring by sending periodic OAM protocol data units (PDUs) to advertise OAM
mode, configuration, and capabilities.
You can specify the number of OAM PDUs that an interface can miss before the link
between peers is considered down.
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Remote Fault Detection
Remote fault detection uses flags and events. Flags are used to convey the following:
Link Fault means a loss of signal, Dying Gasp means an unrecoverable condition such
as a power failure, and Critical Event means an unspecified vendor-specific critical
event. You can specify the periodic OAM PDU sending interval for fault detection.The
EX Series switch uses the Event Notification OAM PDU to notify the remote OAM device
when a problem is detected. You can specify the action to be taken by the system
when the configured link-fault event occurs.
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Remote Loopback Mode
Remote loopback mode ensures link quality between the switch and a remote peer
during installation or troubleshooting. In this mode, when the interface receives a frame
that is not an OAM PDU or a pause frame, it sends it back on the same interface on
which it was received. The link appears to be in the active state. You can use the returned
loopback acknowledgement to test delay, jitter, and throughput.
Junos OS can place a remote DTE into loopback mode (if remote loopback mode is
supported by the remote DTE). When you place a remote DTE into loopback mode,
the interface receives the remote loopback request and puts the interface into remote
loopback mode. When the interface is in remote loopback mode, all frames except
OAM PDUs are looped back without any changes made to the frames. OAM PDUs
continue to be sent and processed.
Related
Documentation
Configuring Ethernet OAM Link Fault Management (CLI Procedure) on page 3729
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Example: Configuring Ethernet OAM Link Fault Management on EX Series Switches
on page 3727
Example of Ethernet OAM Link Fault Management Configuration
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Example: Configuring Ethernet OAM Link Fault Management on EX Series
Switches on page 3727
Copyright © 2010, Juniper Networks, Inc.
3726
Complete Software Guide for Junos
®
OS for EX Series Ethernet Switches, Release 10.3
Содержание JUNOS OS 10.3 - SOFTWARE
Страница 201: ...CHAPTER 10 Operational Mode Commands for Software Installation 105 Copyright 2010 Juniper Networks Inc ...
Страница 249: ...CHAPTER 13 Operational Mode Commands for User Interfaces 153 Copyright 2010 Juniper Networks Inc ...
Страница 325: ...CHAPTER 17 Operational Mode Commands for System Setup 229 Copyright 2010 Juniper Networks Inc ...
Страница 369: ... Temperature OK 273 Copyright 2010 Juniper Networks Inc Chapter 17 Operational Mode Commands for System Setup ...
Страница 483: ...CHAPTER 21 Configuration Statements for Power Management 387 Copyright 2010 Juniper Networks Inc ...
Страница 487: ...CHAPTER 22 Operational Mode Commands for Power Management 391 Copyright 2010 Juniper Networks Inc ...
Страница 543: ...CHAPTER 27 Operational Mode Commands for Configuration Management 447 Copyright 2010 Juniper Networks Inc ...
Страница 631: ...CHAPTER 33 Operational Mode Commands for User and Access Management 535 Copyright 2010 Juniper Networks Inc ...
Страница 709: ...CHAPTER 38 Operational Mode Commands for System Services 613 Copyright 2010 Juniper Networks Inc ...
Страница 763: ...CHAPTER 41 Configuration Statements for System Monitoring 667 Copyright 2010 Juniper Networks Inc ...
Страница 817: ...CHAPTER 42 Operational Mode Commands for System Monitoring 721 Copyright 2010 Juniper Networks Inc ...
Страница 1014: ...Copyright 2010 Juniper Networks Inc 918 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1016: ...Copyright 2010 Juniper Networks Inc 920 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1042: ...Copyright 2010 Juniper Networks Inc 946 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1106: ...Copyright 2010 Juniper Networks Inc 1010 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1130: ...Copyright 2010 Juniper Networks Inc 1034 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1142: ...Copyright 2010 Juniper Networks Inc 1046 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1163: ...CHAPTER 49 Operational Mode Commands for Virtual Chassis 1067 Copyright 2010 Juniper Networks Inc ...
Страница 1188: ...Copyright 2010 Juniper Networks Inc 1092 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1190: ...Copyright 2010 Juniper Networks Inc 1094 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1210: ...Copyright 2010 Juniper Networks Inc 1114 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1238: ...Copyright 2010 Juniper Networks Inc 1142 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1270: ...Copyright 2010 Juniper Networks Inc 1174 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1276: ...Copyright 2010 Juniper Networks Inc 1180 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1323: ...CHAPTER 56 Operational Mode Commands for Interfaces 1227 Copyright 2010 Juniper Networks Inc ...
Страница 1378: ...Copyright 2010 Juniper Networks Inc 1282 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1400: ...Copyright 2010 Juniper Networks Inc 1304 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1470: ...Copyright 2010 Juniper Networks Inc 1374 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1492: ...Copyright 2010 Juniper Networks Inc 1396 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1565: ...CHAPTER 63 Operational Mode Commands for Bridging and VLANs 1469 Copyright 2010 Juniper Networks Inc ...
Страница 1612: ...Copyright 2010 Juniper Networks Inc 1516 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1614: ...Copyright 2010 Juniper Networks Inc 1518 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1622: ...Copyright 2010 Juniper Networks Inc 1526 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1682: ...Copyright 2010 Juniper Networks Inc 1586 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1686: ...Copyright 2010 Juniper Networks Inc 1590 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1730: ...Copyright 2010 Juniper Networks Inc 1634 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1731: ...CHAPTER 69 Operational Mode Commands for Spanning Tree Protocols 1635 Copyright 2010 Juniper Networks Inc ...
Страница 1760: ...Copyright 2010 Juniper Networks Inc 1664 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1762: ...Copyright 2010 Juniper Networks Inc 1666 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 1806: ...Copyright 2010 Juniper Networks Inc 1710 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2106: ...Copyright 2010 Juniper Networks Inc 2010 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2107: ...CHAPTER 74 Operational Commands for Layer 3 Protocols 2011 Copyright 2010 Juniper Networks Inc ...
Страница 2408: ...Copyright 2010 Juniper Networks Inc 2312 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2410: ...Copyright 2010 Juniper Networks Inc 2314 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2418: ...Copyright 2010 Juniper Networks Inc 2322 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2434: ...Copyright 2010 Juniper Networks Inc 2338 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2438: ...Copyright 2010 Juniper Networks Inc 2342 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2517: ...CHAPTER 80 Operational Mode Commands for IGMP Snooping and Multicast 2421 Copyright 2010 Juniper Networks Inc ...
Страница 2618: ...Copyright 2010 Juniper Networks Inc 2522 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2643: ...Figure 51 Topology for Configuration 2547 Copyright 2010 Juniper Networks Inc Chapter 82 Examples Access Control Configuration ...
Страница 2732: ...Copyright 2010 Juniper Networks Inc 2636 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2841: ...CHAPTER 86 Operational Commands for 802 1X 2745 Copyright 2010 Juniper Networks Inc ...
Страница 2886: ...Copyright 2010 Juniper Networks Inc 2790 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2911: ...CHAPTER 92 Operational Mode Commands for Rate Limiting 2815 Copyright 2010 Juniper Networks Inc ...
Страница 2920: ...Copyright 2010 Juniper Networks Inc 2824 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 2944: ...Copyright 2010 Juniper Networks Inc 2848 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3081: ...CHAPTER 99 Operational Mode Commands for Port Security 2985 Copyright 2010 Juniper Networks Inc ...
Страница 3093: ...ge 0 0 13 0 100 voice 2997 Copyright 2010 Juniper Networks Inc Chapter 99 Operational Mode Commands for Port Security ...
Страница 3096: ...Copyright 2010 Juniper Networks Inc 3000 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3134: ...Copyright 2010 Juniper Networks Inc 3038 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3158: ...Copyright 2010 Juniper Networks Inc 3062 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3178: ...Copyright 2010 Juniper Networks Inc 3082 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3216: ...Copyright 2010 Juniper Networks Inc 3120 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3217: ...CHAPTER 106 Operational Mode Commands for Firewall Filters 3121 Copyright 2010 Juniper Networks Inc ...
Страница 3240: ...Copyright 2010 Juniper Networks Inc 3144 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3268: ...Copyright 2010 Juniper Networks Inc 3172 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3296: ...Copyright 2010 Juniper Networks Inc 3200 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3367: ...CHAPTER 113 Operational Mode Commands for CoS 3271 Copyright 2010 Juniper Networks Inc ...
Страница 3398: ...Copyright 2010 Juniper Networks Inc 3302 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3410: ...Copyright 2010 Juniper Networks Inc 3314 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3422: ...Copyright 2010 Juniper Networks Inc 3326 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3435: ...CHAPTER 120 Operational Mode Commands for PoE 3339 Copyright 2010 Juniper Networks Inc ...
Страница 3444: ...Copyright 2010 Juniper Networks Inc 3348 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3446: ...Copyright 2010 Juniper Networks Inc 3350 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3529: ...CHAPTER 126 Operational Mode Commands for MPLS 3433 Copyright 2010 Juniper Networks Inc ...
Страница 3632: ...Copyright 2010 Juniper Networks Inc 3536 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3634: ...Copyright 2010 Juniper Networks Inc 3538 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3672: ...Copyright 2010 Juniper Networks Inc 3576 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3820: ...Copyright 2010 Juniper Networks Inc 3724 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3858: ...Copyright 2010 Juniper Networks Inc 3762 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3928: ...Copyright 2010 Juniper Networks Inc 3832 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...
Страница 3929: ...CHAPTER 135 Operational Mode Commands for General Network Management and Monitoring 3833 Copyright 2010 Juniper Networks Inc ...
Страница 3946: ...Copyright 2010 Juniper Networks Inc 3850 Complete Software Guide for Junos OS for EX Series Ethernet Switches Release 10 3 ...