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Cisco ASR-920-4SZ-D User Manual
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LAN Switching Configuration Guide Cisco IOS XE Everest 16.5.1 (Cisco
ASR 900 Series)
First Published:
2017-03-30
Americas Headquarters
Cisco Systems, Inc.
170 W
est T
asman Drive
San Jose, CA 95134-1706
USA
http://www
.cisco.com
T
el: 408 526-4000
800 553-NETS (6387)
Fax: 408 527-0883
2
Table of Contents
Default Chapter
3
Table of Contents
3
Chapter
7
Chapter 1 REP Access Gateway
8
Restrictions for REP Access Gateway
8
Information about REP Access Gateway
8
REP Access Gateway Enhancements
8
How to Configure REP Access Gateway
9
Enabling EFD Notifications
9
Configuration Examples
11
Verifying REP Access Gateway
12
Example: Verifying REP AG EFD Notifications
12
Additional References
13
Configuring Resilient Ethernet Protocol
15
Restrictions for Resilient Ethernet Protocol
15
Information about REP
16
REP Segments
16
Link Integrity
18
Fast Convergence
18
VLAN Load Balancing
19
Spanning Tree Protocol Interaction
20
REP Ports
20
REP Integrated with VPLS
20
Default REP Configuration
21
REP Segments and REP Administrative Vlans
21
REP Configuration Guidelines
21
REP Support on a Trunk EFP
22
REP Configurable Timers
22
SSO Support for REP Fast Hello
23
REP Edge No-Neighbor Support
23
How to Configure REP
24
Configuring the REP Administrative VLAN
24
Configuring Trunk EFP on an Interface
26
Configuring REP Support on a Trunk EFP
27
Setting the Preemption for VLAN Load Balancing
30
Restrictions
30
Configuring SNMP Traps for REP
31
Monitoring the REP Configuration
33
Configuring REP Configurable Timers
33
Configuring REP as an Edge No-Neighbor Port
37
Configuration Examples for REP
38
Configuring the REP Administrative VLAN
38
Configuring REP Support on a Trunk EFP
38
Setting the Preemption for VLAN Load Balancing
39
Configuring SNMP Traps for REP
39
Monitoring the REP Configuration
39
Configuring REP Configurable Timers
40
Configuring REP Edge No-Neighbor Support
40
Additional References
40
Feature Information for Resilient Ethernet Protocol
41
Unidirectional Link Detection (UDLD) Protocol
43
Information about the UDLD Protocol
43
UDLD Overview
43
UDLD Normal Mode
44
UDLD Aggressive Mode
44
UDLD Functions
45
Detecting Unidirectional Links
45
How to Configure UDLD Protocol
46
Enabling UDLD Protocol
46
Enabling UDLD Protocol at Interface Level
47
Enabling UDLD Probe Message Interval
48
Recovering the UDLD Protocol
48
Resetting Ports
49
Configuration Examples
50
Example: Configuring UDLD Protocol
50
Verifying UDLD Protocol
50
Example: Verifying UDLD Protocol
50
ITU-T G.8032 Ethernet Ring Protection Switching
53
Prerequisites for Configuring ITU-T G.8032 Ethernet Ring Protection Switching
53
About ITU-T G.8032 Ethernet Ring Protection Switching
53
Ring Protection Links
53
ITU-T G.8032 Ethernet Ring Protection Switching Functionality
54
R-APS Control Messages
54
CFM Protocols and Link Failures
55
G.8032 Ring-Supported Commands and Functionality
55
G.8032 ERP Timers
56
Protection Switching Functionality in a Single Link Failure and Recovery
57
Ethernet Flow Points
59
Service Instances and Associated Efps
60
Restrictions for Configuring ITU-T G.8032 Ethernet Ring Protection Switching
61
How to Configure ITU-T G.8032 Ethernet Ring Protection Switching
61
Configuring the Ethernet Ring Profile
61
Configuring Ethernet CFM Meps
62
Enabling Ethernet Fault Detection for a Service
63
Configuring the Ethernet Protection Ring
65
Configuring Topology Change Notification Propagation
68
Configuring a Service Instance
69
Verifying the Ethernet Ring Protection (ERP) Switching Configuration
70
Configuration Examples for ITU-T G.8032 Ethernet Ring Protection Switching
73
Example: Configuring Ethernet Ring Protection Switching
73
Example: Enabling Ethernet Fault Detection for a Service
73
Example: Verifying the Ethernet Ring Protection Configuration
74
Multiple Spanning Tree Protocol
75
Restrictions for Configuring MSTP
75
How to Configure MST Protocol
75
Enabling Multiple Spanning Tree Protocol
76
Configuring Untagged EFP over MST Interface
77
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Cisco ASR-920-4SZ-D Specifications
General
Brand
Cisco
Model
ASR-920-4SZ-D
Category
Network Router
Language
English
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