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ExtremeXOS 12.0 概念指南:配置与管理详解
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更新于2024-08-01
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"Extreme Networks的EXOS Concepts指南12.0版是一个详细的手册,涵盖了该公司的网络设备的基本操作、管理和升级流程。此文档特别强调了协议配置,包括Extreme Networks的各种专有技术和解决方案。随着更新,可能会发布更高版本的文档。"
Extreme Networks是一家专注于网络解决方案的公司,其提供的ExtremeXOS Concepts Guide 12.0是针对其网络操作系统的一个关键参考资料。该指南主要服务于网络管理员和技术人员,帮助他们理解和掌握ExtremeXOS 12.0的各个方面。
在基础操作部分,手册可能涵盖了如何初始化和配置 ExtremeXOS 设备,如设置接口、配置IP地址、管理路由和交换等基本功能。这些操作是网络管理的基础,确保设备能够正确地连接到网络并提供服务。
管理部分可能包括设备监控、性能优化、故障排查以及日志管理和维护。这部分内容对于保持网络稳定性和高效运行至关重要。例如,它可能详细解释了如何使用ExtremeWare进行设备监控,以及如何通过ServiceWatch或UnifiedAccessArchitecture来管理用户接入和网络服务质量。
升级章节则会教导用户如何安全地升级设备固件,以获取新特性、改进性能或修复已知问题。这可能涉及备份当前配置、下载新软件版本、应用升级包以及验证升级后设备的正常运行。
协议配置部分是此文档的一大亮点,可能包含了Extreme Networks特有的协议,如ESRP(Extreme Standby Router Protocol)用于冗余路由,Alpine和BlackDiamond系列产品的特有功能,如ExtremeTurbodrive提升网络速度,以及UnifiedAccessRFManager对无线接入的管理。这些协议和解决方案旨在提高网络的可靠性和性能。
此外,文档还提到了一系列Extreme Networks的商标,表明公司对其技术和服务的专有权益。虽然具体的技术规格可能会有所变化,但这些商标代表了 Extreme Networks 在网络领域不断创新和提供高品质解决方案的承诺。
ExtremeXOS Concepts Guide 12.0是理解、操作和维护Extreme Networks设备的宝贵资源,为网络专业人员提供了全面的技术支持。无论是新手还是经验丰富的管理员,都能从中获得关于网络管理的深入见解和实用指导。
Contents
Extreme XOS 12.0 Concepts Guide
16
Chapter 24: Configuring Stacked Switches ................................................................................... 591
Overview ................................................................................................................................591
Understanding SummitStack Terms ....................................................................................592
Required Software Release.................................................................................................594
Understanding SummitStack Configuration Parameters, Configuration Files,
and Port Numbering ..........................................................................................................594
Understanding Stacking Link Overcommitment ....................................................................595
About SummitStack Logging Messages................................................................................595
About QoS in Stacking.......................................................................................................596
About Power Management and Power Over Ethernet on Stacking ...........................................597
About Stacking Node Roles, Redundancy, and Failover .........................................................597
About the Failsafe Account on SummitStack Nodes..............................................................598
SummitStack Compatible Switches...........................................................................................598
SummitStack Topologies..........................................................................................................599
Ring Topology ...................................................................................................................600
Daisy Chain Topology.........................................................................................................601
Stack Depth .....................................................................................................................602
Logging into a SummitStack ....................................................................................................603
Logging in Through the Console Port ...................................................................................603
Logging in from the Management Network ...........................................................................603
Logging Into a Node From Another Node .............................................................................604
Managing Licenses on a SummitStack ......................................................................................604
Viewing Switch Licenses ....................................................................................................605
Enabling a Switch License .................................................................................................605
Restricting a Switch License Level......................................................................................606
Upgrading Licenses ...........................................................................................................606
Configuring a New Stack..........................................................................................................607
Configuration Procedure.....................................................................................................608
Converting a Standalone Node Deployment to a Stack ................................................................609
SummitStack Configuration Tasks.............................................................................................611
Enabling the Stack ............................................................................................................611
Verifying the Configuration .................................................................................................611
Setting the Command Prompt.............................................................................................614
Configuring Slot Numbers ..................................................................................................615
Configuring Node Priority ...................................................................................................615
Assigning a MAC address for the Stack................................................................................616
Configuring Master-Capability.............................................................................................617
Configuring an Alternate Management IP Address ................................................................618
Configuring the Failsafe Account on a Stack ........................................................................619
Saving the Configuration ....................................................................................................619
Managing an Operating SummitStack........................................................................................619
Stacking LEDs ..................................................................................................................619
Configuring and Viewing Stacking Port Status ......................................................................620
Adding a Node to an Active Topology ..................................................................................620
Replacing a Node with the Same Switch Type......................................................................621
Replacing a Node with a Different Switch Type ....................................................................622
Merging Two Stacks ..........................................................................................................623
Synchronize Command Operation........................................................................................624
Upgrading ExtremeXOS on a Stack......................................................................................624
Rebooting a Stack .............................................................................................................626
Contents
Extreme XOS 12.0 Concepts Guide
17
Configuration Examples ...........................................................................................................626
Building and Deploying a New Stack...................................................................................626
Joining Two Stacks............................................................................................................630
Adding a Node to a Stack...................................................................................................636
Configuring an Alternate IP Address....................................................................................638
Configuring a MAC address ................................................................................................639
Configuring the License Level Restriction ............................................................................642
Bringing All Nodes Up to the Same License Level ................................................................642
VLAN Management in Stacking...........................................................................................643
Troubleshooting a Stack...........................................................................................................644
Managing a Dual Master Situation ......................................................................................645
Setting Traps for Stacking..................................................................................................647
Connecting to a SummitStack with No Master......................................................................648
Rescuing a Stack That Has No Master-Capable Node............................................................648
FAQs on SummitStack.............................................................................................................650
Part 2: Using Switching and Routing Protocols
Chapter 25: Ethernet Automatic Protection Switching.................................................................... 653
Licensing ...............................................................................................................................653
Overview of the EAPS Protocol .................................................................................................654
Fast Convergence ..............................................................................................................655
EAPS and Hitless Failover—Modular Switches and SummitStack Only ...................................655
Fault Detection and Recovery ...................................................................................................656
Link Down Message Sent by a Transit Node .........................................................................657
Ring Port Down Event Sent by Hardware Layer.....................................................................658
Polling .............................................................................................................................658
Restoration Operations.......................................................................................................658
Multiple EAPS Domains...........................................................................................................659
EAPS Data VLAN Spanning Two Rings Connected by One Switch...........................................659
Multiple EAPS Domains per Ring—Spatial Reuse.................................................................660
Multiple EAPS Rings Sharing a Common Link......................................................................661
Configuring EAPS on a Switch..................................................................................................662
Creating and Deleting an EAPS Domain...............................................................................663
Defining the EAPS Mode of the Switch................................................................................664
Configuring EAPS Polling Timers ........................................................................................665
Configuring the Primary and Secondary Ports.......................................................................666
Configuring the EAPS Control VLAN....................................................................................666
Adding the EAPS Protected VLANs .....................................................................................667
Enabling and Disabling Fast Convergence............................................................................668
Enabling and Disabling an EAPS Domain.............................................................................668
Enabling and Disabling EAPS on the Switch ........................................................................668
Unconfiguring an EAPS Ring Port .......................................................................................669
Disabling EAPS Loop Protection Warning Messages..............................................................670
Displaying EAPS Status and Counter Information .................................................................670
Configuring EAPS Shared Ports ................................................................................................675
Steady State .....................................................................................................................675
Common Link Failures .......................................................................................................676
Flushing the FDBs.............................................................................................................678
Creating and Deleting a Shared Port....................................................................................678
Defining the Mode of the Shared Port..................................................................................678
Contents
Extreme XOS 12.0 Concepts Guide
18
Configuring the Link ID of the Shared Port...........................................................................678
Configuring the Shared Port Segment Timer.........................................................................679
Unconfiguring an EAPS Shared Port....................................................................................679
Displaying EAPS Shared-Port Status and Counter Information ...............................................679
EAPS Shared Port Configuration Rules ......................................................................................684
EAPS Shared Port Configuration Examples ................................................................................685
Basic Configuration ...........................................................................................................685
Basic Core Configuration....................................................................................................686
Right Angle Configuration ..................................................................................................686
Combined Basic Core and Right Angle Configuration ............................................................687
Large Core and Access Rings Configuration..........................................................................687
Advanced Configuration .....................................................................................................688
Chapter 26: Spanning Tree Protocol............................................................................................. 689
Overview of the Spanning Tree Protocol.....................................................................................689
Compatibility Between 802.1D-1998 and 802.1D-2004 STP Bridges ...................................690
Spanning Tree Domains...........................................................................................................693
Member VLANs .................................................................................................................694
STPD Modes.....................................................................................................................695
Encapsulation Modes.........................................................................................................696
STP States .......................................................................................................................697
Binding Ports....................................................................................................................698
Rapid Root Failover ...........................................................................................................700
STPD BPDU Tunneling ......................................................................................................700
STP and Hitless Failover—Modular Switches Only................................................................702
STP Configurations..................................................................................................................703
Basic STP Configuration ....................................................................................................704
Multiple STPDs on a Port...................................................................................................706
VLANs Spanning Multiple STPDs........................................................................................706
EMISTP Deployment Constraints ........................................................................................707
Per VLAN Spanning Tree..........................................................................................................709
STPD VLAN Mapping.........................................................................................................709
Native VLAN .....................................................................................................................709
Rapid Spanning Tree Protocol ..................................................................................................709
RSTP Concepts .................................................................................................................710
RSTP Operation ................................................................................................................713
Multiple Spanning Tree Protocol...............................................................................................721
MSTP Concepts ................................................................................................................721
MSTP Operation................................................................................................................730
STP Rules and Restrictions ......................................................................................................732
Configuring STP on the Switch .................................................................................................732
STP Configuration Examples ..............................................................................................734
Displaying STP Settings...........................................................................................................739
Chapter 27: Extreme Standby Router Protocol ............................................................................... 743
Licensing ...............................................................................................................................743
Overview of ESRP ...................................................................................................................744
ESRP Modes of Operation ..................................................................................................744
ESRP and ELRP................................................................................................................744
Reasons to Use ESRP........................................................................................................745
Contents
Extreme XOS 12.0 Concepts Guide
19
ESRP Concepts.......................................................................................................................745
ESRP-Aware Switches .......................................................................................................746
Standard and Extended ESRP ............................................................................................748
ESRP Domains .................................................................................................................749
Linking ESRP Switches......................................................................................................750
ESRP and Hitless Failover—Modular Switches and SummitStack Only ...................................750
Determining the ESRP Master ..................................................................................................751
Master Switch Behavior .....................................................................................................752
Pre-Master Switch Behavior................................................................................................752
Slave Switch Behavior .......................................................................................................752
Neutral Switch Behavior ....................................................................................................752
Electing the Master Switch.................................................................................................753
ESRP Failover Time...........................................................................................................753
ESRP Election Algorithms ..................................................................................................754
Configuring an ESRP Domain on a Switch .................................................................................756
Creating and Deleting an ESRP Domain...............................................................................756
Configuring the ESRP Domain ID........................................................................................757
Adding VLANs to an ESRP Domain .....................................................................................757
Enabling and Disabling an ESRP Domain ............................................................................758
Advanced ESRP Features.........................................................................................................759
ESRP Tracking..................................................................................................................759
ESRP Port Restart.............................................................................................................762
ESRP Host Attach .............................................................................................................762
ESRP Port Weight and Don’t Count.....................................................................................763
ESRP Groups....................................................................................................................764
Selective Forwarding .........................................................................................................765
Displaying ESRP Information ...................................................................................................767
Using ELRP with ESRP............................................................................................................767
Using ELRP with ESRP to Recover Loops ............................................................................768
Configuring ELRP..............................................................................................................768
Displaying ELRP Information..............................................................................................770
ESRP Examples ......................................................................................................................770
Single Domain Using Layer 2 and Layer 3 Redundancy.........................................................770
Multiple Domains Using Layer 2 and Layer 3 Redundancy ....................................................772
ESRP Cautions .......................................................................................................................775
Configuring ESRP and IP Multinetting.................................................................................775
ESRP and STP..................................................................................................................775
ESRP and VRRP ...............................................................................................................775
ESRP Groups and Host Attach............................................................................................775
Port Configurations and ESRP ............................................................................................775
Chapter 28: Virtual Router Redundancy Protocol........................................................................... 777
Licensing ...............................................................................................................................777
Overview of VRRP ...................................................................................................................778
VRRP and Hitless Failover—Modular Switches and SummitStack Only ...................................778
Determining the VRRP Master ..................................................................................................779
VRRP Tracking..................................................................................................................779
Electing the Master Router.................................................................................................781
Additional VRRP Highlights......................................................................................................782
VRRP Operation ......................................................................................................................783
Contents
Extreme XOS 12.0 Concepts Guide
20
Simple VRRP Network Configuration ...................................................................................783
Fully Redundant VRRP Network..........................................................................................784
VRRP Configuration Parameters................................................................................................785
VRRP Examples ......................................................................................................................786
Configuring the Simple VRRP Network ................................................................................786
Configuring the Fully Redundant VRRP Network...................................................................787
VRRP Cautions .......................................................................................................................788
Assigning Multiple Virtual IP Addresses...............................................................................788
VRRP and ESRP ...............................................................................................................788
Chapter 29: MultiProtocol Label Switching (MPLS) Protocol.......................................................... 789
About MPLS ...........................................................................................................................789
How MPLS Works..............................................................................................................789
MPLS Terms and Acronyms................................................................................................790
Label Switched Paths ........................................................................................................791
MPLS Data Plane....................................................................................................................791
Label Switch Routers.........................................................................................................792
Supporting Quality of Service Features ................................................................................793
MPLS Layer......................................................................................................................793
Routing Using LSPs ..........................................................................................................795
About MPLS Layer-2 VPNs.................................................................................................798
Configuring MPLS ...................................................................................................................799
Configuring MPLS LSR ID..................................................................................................799
Configuring MPLS Interfaces..............................................................................................799
Enabling MPLS .................................................................................................................800
Enabling MPLS Interfaces..................................................................................................800
Propagation of IP TTL........................................................................................................800
Configuring Penultimate Hop Popping.................................................................................801
Configuring QoS Mappings .................................................................................................801
Mapping Dot1p to EXP Bits................................................................................................802
Resetting MPLS Configuration Parameter Values ..................................................................802
Displaying MPLS Configuration Information .........................................................................803
Configuration Example.............................................................................................................807
MPLS Configuration Constraints ...............................................................................................809
Chapter 30: Label Distribution Protocol ........................................................................................ 811
Overview of LDP......................................................................................................................811
LDP Neighbor Discovery.....................................................................................................811
Advertising Labels .............................................................................................................812
Propagating Labels............................................................................................................812
MPLS LDP Signaling Modes.....................................................................................................812
Label Advertisement Modes................................................................................................812
Label Retention Modes ......................................................................................................813
LSP Control Modes............................................................................................................813
Configuring LDP......................................................................................................................814
Enabling LDP on the Switch...............................................................................................814
Enabling LDP on a VLAN ...................................................................................................814
Enabling LDP Loop Detection .............................................................................................815
Configuring an LDP Label Advertisement Filter ....................................................................815
Configuring LDP Session Timers .........................................................................................815
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