All About Switches (Feature Description, Configuration, and Troubleshooting) Highlighted

Created May 06, 2015 10:25:47Latest reply Mar 16, 2019 18:26:20 25954 52 16 5

All About Switches is a series of switch materials released. Itcovers top issues collected from Huawei Global Service Hotline. We hope thesematerials are helpful for you.



Feature Description



Basic InformationIntroduction to Modular SwitchesProvides the models and characteristics of Huawei modular switches (mainstream versions).
Introduction to Huawei Fixed SwitchesProvides the models and application scenarios of fixed switches.
Uncover Switches' Support for CardsLists the cards supported by each model and provides methods to quickly remember and find out required cards.
Tips on Identfying Fixed Switch Models and VersionsProvides the positioning, supported subcards, PoE models, and software versions of fixed switches.
Web NMSDescribes what is web NMS, how to load web files, and how to configure web users.
EasyOperation web NMSDescribes how to configure interfaces through web NMS (EasyOperation edition).
User Login PasswordDescribes frequently asked questions about login passwords, including the default password and method of changing the login password.
MirroringMirroring Working Mechanism and ConfigurationDescribes the mirroring working mechanism, application, and configuration.
Mirroring SpecificationsDescribes the mirroring specifications on switches of different versions and models.
Interface ConfigurationInterface Configuration Tip 1 Batch ConfigurationDo you know how to do the batch configuration?
Interface Configuration Tip 2 Port IsolationProvides the application scenarios and modes of port isolation and describes how to implement unidirectional isolation.
Interface Configuration Tip 3 Auto-NegotiationDescribes interface faults that frequently occur and impact of auto-negotiation on interfaces.
VLANVLAN BasicsDescribes the definition and purpose of VLAN technology and modes in which interfaces are added to VLANs.
VLAN AssignmentDescribes VLAN assignment modes and applicable scenarios, and mainly describes the configuration and scenario of interface-based assignment.
VLAN CommunicationDescribes how to implement inter-VLAN communication.
VLAN IsolationDescribes how to separate users in a VLAN, implement communication between some VLANs, and separate some VLANs.
ACLBasic Knowledge ACLDescribes what are the classification, rules, and step of ACLs.
ACL MatchingDescribes ACL matching mechanism, match order, and matching items.
ACL ApplicationDescribes how each service module processes and uses ACLs.
ARPARP Serving as a Bridge Between IP and MAC AddressesThis thread describes ARP entry principles to help you know how to use the ARP table and solve related ARP configuration problems.
QinQQinQ TechnologDescribes the working mechanism and application of QinQ
Routing Policy1 Routing PolicyDescribes various tools used in routing policy and invoking between these tools.
2 Route-PolicyDescribes the components, matching rules, and applications of route-policy.
3 IP Prefix ListDescribes how to use an IP prefix list and differences between it and ACL.
4 Filter-PolicyDescribes filter-policy principles and applications.
5 BGP Routing Policy (1)
Describes applications of IP prefix list, filter-policy, and route-policy in BGP.
6 BGP Routing Policy (2)Describes applications of AS_Path filter and Community attribute in BGP.
SecuritySecurity Holistic ViewIntroduces the major threats to S series switches and security protection planning.
Control Plane SecurityIntroduces the security measures for administrator login and user access, involving who can log in, how to log in securely, and how to securely operate after login.
Management Plane SecurityDescribes how to ensure CPU security for S series switches, involving guarantee of CPU normal working and high CPU usage troubleshooting.
Forwarding Plane Security Layer 2 SecurityDescribes how to ensure normal running of the switch at Layer 2, involving MAC address table protection and broadcast storm suppression.
Forwarding Plane Security Layer 3 SecurityDescribes how to ensure Layer 3 security of switches, involving ARP table security protection and IP address spoofing prevention.
QoSQoS Issues - Issue 1 QoS OverviewWhy and how was QoS developed How is the network quality measured From which aspects does QoS guarantee network quality How is QoS applied This issue provides answers to these questions.
QoS Issues - Issue 2 QoS Implementation - MQCQoS technology can classify packets and provide differentiated services based on priorities. How are differentiated services implemented This issue describes MQC.
QoS Issues - Issue 3 QoS Implementation - Simple Traffic Classification and Re-markingPacket classification is the basis for QoS implementation and the prerequisite for implementation of differentiated services. MQC is used to classify packets, and priority mapping is another method of packet classification and marking. This issue describes the implementation of priority mapping of Huawei S switches.
QoS Issues - Issue 4 QoS Implementation - Rate LimitingThe rates of different types of traffic is different. If traffic is not limited, problems such as congestion and service interruption occur frequently. This issue describes how to configure rate limiting, helping you learn how QoS improves the network service quality.
QoS Issues - Issue 5 QoS Implementation - Queue Scheduling Modes and Packet Loss PoliciesHow is the problem of network congestion solved This issue describes packet drop policies used to prevent congestion and scheduling modes when congestion occurs.


Configuration Examples

 IP PhonesExample for Connecting IP Phones to Switches Through the MED TLVThis example applies to the scenario where an IP phone can obtain the voice VLAN ID based on the network-policy TLV field of LLDP.
Example for Connecting Cisco IP Phones to Switches Using HDPThis example applies to the scenario where an IP phone obtains the voice VLAN ID through HDP. The phones include Cisco phones.
Example for Connecting an S Series Switch to an IP Phone Using DHCPThis example applies to the scenario where an IP phone obtains the voice VLAN ID through HDP. The phones include Cisco phones.
Example of Connecting an S Series Switch to an IP Phone Using MAC Address-based VLAN AssignmentThis example applies to the scenario where phones cannot obtain voice VLAN IDs through protocols. Typical phones include Avaya phones.
Example of Connecting an S Series Switch to an IP Phone Using Voice VLANThis example applies to the scenario where an IP phone is authenticated using untagged packets and obtains the voice VLAN ID and the switch uses an earlier version of V200R003. The phones include Avaya phones.
Example for Connecting IP Phones to Switches Through the PVID of the Voice VLAN IDThis example applies to the scenario where an IP phone is authenticated using untagged packets and obtains the voice VLAN ID and the switch uses an earlier version of V200R003. The phones include Avaya phones.
Example for Connecting IP Phones to Switches Through an ACLThis example applies to the scenario where an ACL is used and an IP phone does not support any mode to obtain the voice VLAN ID.
Example of Connecting an S Series Switch to an IP Phone Using a Traffic PolicyThis example applies to the scenario where phones cannot obtain voice VLAN IDs through any mode and traffic policies are used.
Example for Connecting an S Series Switch to an IP Phone Using NACThis example describes interconnection using NAC. It applies to the scenario where high security is required and only authenticated devices are allowed to connect to a network. Typical phones include Avaya phones.
AgileController-CampusExample for Configuring Portal Authentication to Control Internal User Access to the Enterprise Network (Authentication Point on Core Switch)1. Configure Portal authentication on the core switch.
           2. Huawei's Agile Controller-Campus functions as the RADIUS server. Huawei switches run V200R005C00 to V200R008C00.
Example for Configuring Portal Authentication to Control Internal User Access to the Enterprise Network (Authentication Point on Core Switch)1. Configure Portal authentication on the core switch.
           2. Huawei's Agile Controller-Campus functions as the RADIUS server. Huawei switches run V200R009C00 and later versions.
Example for Configuring Portal Authentication to Control Internal User Access to the Enterprise Network (Authentication Point on Aggregation Switch)1. Configure Portal authentication on the aggregation switch.
           2. Huawei's Agile Controller-Campus functions as the RADIUS server. Huawei switches run V200R005C00 to V200R008C00.
Example for Configuring Portal Authentication to Control Internal User Access to the Enterprise Network (Authentication Point on Aggregation Switch)1. Configure Portal authentication on the aggregation switch.
           2. Huawei's Agile Controller-Campus functions as the RADIUS server. Huawei switches run V200R009C00 and later versions.
Example for Configuring 802.1x and MAC Address Authentication to Control Internal User Access to the Enterprise Network1. Configure 802.1x authentication and MAC address authentication on the access switch.
           2. Huawei's Agile Controller-Campus functions as the RADIUS server. Huawei switches run V200R005C00 to V200R008C00.
Example for Configuring 802.1x and MAC Address Authentication to Control Internal User Access to the Enterprise Network1. Configure 802.1x authentication and MAC address authentication on the aggregation switch.
           2. Huawei's Agile Controller-Campus functions as the RADIUS server. Huawei switches run V200R005C00 to V200R008C00.
Example for Configuring 802.1x and MAC Address Authentication to Control Internal User Access to the Enterprise Network1. Configure 802.1x authentication and MAC address authentication on the aggregation switch.
           2. Huawei's Agile Controller-Campus functions as the RADIUS server. Huawei switches run V200R009C00 and later versions.
Example for Configuring User Authorization Based on ACL or Dynamic VLAN Delivery1. Configure 802.1x authentication on the access switch.
           2. Deliver ACLs and VLANs to users through the RADIUS server.
           3. Huawei's Agile Controller-Campus functions as the RADIUS server. Huawei switches run V200R009C00 and later versions.
Example for Configuring Guest Access Using Social Media Accounts (GooglePlus, Facebook, or ******* Accounts)1. Deliver ACLs and VLANs to users through the RADIUS server.
           2. Describe how to access the network through social media accouts. Huawei switches run V200R009C00 and later versions.
Example for Deploying the Free Mobility Function for Users' Physical Location Change(V200R006C00, V200R007C00, V200R008C00)Implementation of the free mobility function requires cooperation between switches and the Agile Controller. The administrator only needs to uniformly deploy network access policies for users on the Agile Controller and delivers the policies to associated switches. This configuration allows users to obtain the same access policies regardless of their physical locations and IP addresses.
Example for Deploying the Free Mobility Function for Users' Physical Location Change (V200R009 and later versions)Implementation of the free mobility function requires cooperation between switches and the Agile Controller. The administrator only needs to uniformly deploy network access policies for users on the Agile Controller and delivers the policies to associated switches. This configuration allows users to obtain the same access policies regardless of their physical locations and IP addresses.
Cisco Identity Services Engine (ISE)Example for Configuring 802.1x Authentication to Control Access of Wired Terminals (Authentication Point on Aggregation Switch)V200R008C001. Configure 802.1x authentication on the aggregation switch.
           2. Cisco's ISE functions as the RADIUS server. Huawei switches run V200R008.
           3. This example applies to wired user access scenarios.
Example for Configuring 802.1x Authentication to Control Access of Wired Terminals (Authentication Point on Aggregation Switch)V200R009C00 and later versions1. Configure 802.1x authentication on the aggregation switch.
           2. Cisco's ISE functions as the RADIUS server. Huawei switches run V200R009C00 and later versions.
           3. This example applies to wired user access scenarios.
Example for Configuring 802.1x Authentication to Control Access of Wireless STAs(V200R005C00 to V200R008C00)1. Configure 802.1x authentication on the aggregation switch.
           2. Cisco's ISE functions as the RADIUS server. Huawei switches run V200R005C00 to V200R008C00.
           3. This example applies to wireless user access scenarios.
Example for Configuring 802.1x Authentication to Control Access of Wireless STAs(V200R009C00 and later versions)1. Configure 802.1x authentication on the aggregation switch.
           2. Cisco's ISE functions as the RADIUS server. Huawei switches run V200R009C00 and later versions.
           3. This example applies to wireless user access scenarios.
Example for Configuring MAC Address Authentication to Control Access of Wired Terminals(V200R008C00)1. Configure MAC address authentication on the aggregation switch.
           2. Cisco's ISE functions as the RADIUS server. Huawei switches run V200R008C00.
           3. This example applies to wired user access scenarios.
Example for Configuring MAC Address Authentication to Control Access of Wired Terminals(V200R009C00 and later versions)1. Configure MAC address authentication on the aggregation switch.
           2. Cisco's ISE functions as the RADIUS server. Huawei switches run V200R009C00 and later versions.
           3. This example applies to wired user access scenarios.
Example for Configuring MAC Address Authentication to Control Access of Wireless Office Devices(V200R008C00 and earlier versions)1. Configure MAC address authentication on the aggregation switch.
           2. Cisco's ISE functions as the RADIUS server. Huawei switches run V200R008C00 and earlier versions.
           3. This example applies to wireless user access scenarios.
Example for Configuring MAC Address Authentication to Control Access of Wireless Office Devices(V200R009C00 and Later Versions)1. Configure MAC address authentication on the aggregation switch.
           2. Cisco's ISE functions as the RADIUS server. Huawei switches run V200R009C00 and later versions.
           3. This example applies to wireless user access scenarios.
Example for Configuring User Authorization Based on ACL or Dynamic VLAN Delivery(V200R005C00-V200R008C00)When a switch is connected to a RADIUS server, the switch performs ACL and dynamic VLAN authorization for users through the RADIUS server to control users' network access rights.
Example for Configuring User Authorization Based on ACL or Dynamic VLAN Delivery(V200R009C00 and Later Versions)When a switch is connected to a RADIUS server, the switch performs ACL and dynamic VLAN authorization for users through the RADIUS server to control users' network access rights.
NLB ClusterExample for Connecting a Device to an NLB Cluster (Using Multi-Interface ARP)This thread describes how to configure multi-interface ARP to connect an S series switch to an NLB cluster.
Example for Connecting a Single Device to an NLB Cluster (Using Physical Link Loopback)This thread describes how to configure physical link loopback to connect an S series switch to an NLB cluster.
Example for Connecting a VRRP Group to an NLB Cluster (Using Physical Link Loopback)This thread describes how to configure physical link loopback to connect a VRRP group of S series switches to an NLB cluster.
Example for Connecting a Stack to an NLB Cluster (Using Physical Link Loopback)This thread describes how to configure physical link loopback to connect a stack of S series switches to an NLB cluster.
Interconnection Between Huawei Switches and Cisco Switches
Interworking and Replacement Guide of DTPLNP supported by Huawei S series switches of V200R005 and later versions can replace Cisco DTP.
Interworking and Replacement Guide VTPVCMP supported by Huawei S series switches of V200R005 and later versions can interwork with and replace Cisco VTP. The document provides the configuration method when both VCMP and LNP are used.
Guide of Replacing the HSRPThis document describes how to use VRRP on S series switches to interwork with HSRP and use VRRP to replace HSRP, and provides configuration notes.
Interworking and Replacement Guide of Spanning Tree Protocols on Huawei Switches and Cisco SwitchesThis document describes the interworking and replacement guide of spanning tree protocols on Huawei S series switches and Cisco switches.
Interworking and Replacement Guide of Link AggregationThis document describes the interworking and replacement guide of link aggregation on Huawei S series switches and Cisco switches.
Agile FeaturesExample for Configuring Unified Access for Wired and Wireless UsersThis document comprehensively describes networking applications, usage scenarios, and service configurations of unified wireless user access.
Example for Configuring ACU2 on the S12700This document comprehensively describes networking applications, usage scenarios, and service configurations of the S12700 ACU2.
Example for Configuring HQoSThis document describes the HQoS principle and provides a configuration example.
Example for Configuring Free MobilityImplementation of the free mobility function requires cooperation between switches and the Agile Controller.
           The administrator only needs to uniformly deploy network access policies for users on the Agile Controller and delivers the policies to associated switches.
           An agile campus network for a university is taken as an example in the following sections to describe how agile networks improve the network services for campus users.
Traditional FeaturesExample for Configuring NGFW ModuleThis article describes the appearance, typical application, and typical configurations of the NGFW Module.
Example for Configuring IPS ModuleThis article describes the appearance, typical application, and typical configurations of the IPS Module.
Example for Configuring STPThis document describes the implementation and typical application of STP, and provides configuration examples.
Example for Configuring RSTPThis document describes the implementation and typical application of RSTP, and provides configuration examples.
Example for Configuring MSTPThis document describes the implementation and typical application of MSTP, and provides configuration examples.
Campus EgressExample for Configuring Egress Devices for Small- and Medium-Scale Campus or Branch NetworksThis document describes how to use access switches, aggregation switches, and egress routers to construct small-and-medium enterprise egress networks, allowing enterprise users to access both the Internet and VPNs.
Example for Configuring the Egress of a Large-scale Campus (Firewalls Are Connected to Core Switches in In-line Mode)This article describes how to filter the service traffic entering and leaving a campus network by connecting a core switch to the firewall and connecting the firewall to the egress gateway.
Example for Configuring the Egress of a Large-scale Campus (Firewalls Are Connected to Core Switches in Bypass Mode)This article describes how to filter service traffic by connecting the core switch to the router and connecting the firewall to the core switch in bypass mode.
Industrial CasesExample for Configuring an Agile Campus NetworkThis documentdescribes how to construct campus networks using switches to meet service requirements for broadband access, video teaching, video teleconferencing, and data center.
OLT Typical Configuration for Interoperation Between Switches and Huawei OLTThis documentintroduces the configuration guide of GPON Type B network protection.



Troubleshooting

1User Login PasswordIs there a      default password for first login? What should I do if I forget the password?      This thread provides answers to all login password questions.
2How to Check Transceiver InformationDescribes      how to check optical transceiver information if an optical transceiver does      not work normally.
3Tips on Identifying Indicators on      Fixed SwitchesDescribes      meanings of indicator colors and states and indicator states that show faults      on a switch.
4Locating Eth-Trunk FaultsThis      article shows you how to locate Eth-Trunk faults.
5Tips on Identifying Indicators on      Modular SwitchesDescribes      meanings of indicator colors and states, and how to identify faults o a      switch based on indicator states.
6Tell You About PoEDescribes      switch models that support PoE and the PoE power that these switches can      provide.
7Locating the Problem of MAC Address      LearningThis      article shows you how tolocate the faults that MAC addresses cannot be      learned.
822 Tips for S Series SwitchesThis      article shows you 22 product improvements and tips, helping you configure and      maintain the switches easily.
9S Switch High CPU Usage      Troubleshooting: How to Relieve CPU LoadThis      document describes the impacts and common causes of high CPU usage, as well      as how to locate, solve, and avoid this problem.
S Switch High CPU Usage      Troubleshooting: How to Fix the High CPU Usage Problem
S Switch High CPU Usage      Troubleshooting: High CPU Usage Typical Cases
10Layer 2 Loop TroubleshootingThis      document describes how to troubleshoot Layer 2 Loop, including the      principles, roadmap, example.
11A DHCP Client Cannot Obtain an IP      AddressThis      document describes how to troubleshoot users' failures to obtain IP      addresses, including the principles, roadmap, example, and FAQ.
12Access Authentication TroubleshootingThe      process of going online includes two stages: authentication and access. The      RADIUS protocol is most commonly used for authentication, and the 802.1x,      Portal, and MAC address authentications are commonly used authentication      methods. Combining authentication technologies with different LAN access      technologies can implement user authentication and authorization, thus      controlling access rights of access users.
13S Series Switches Ethernet Interface      Physically DownThis      document describes how to troubleshoot S Series Switches Ethernet Interface      Physically Down, including the principles, roadmap, example, and FAQ.
14Ping Failure Troubleshooting (1)Ping      failure is a common problem on the live network. Then how can we locate the      causes of ping failures? Let's read the following context. 
Ping Failure Troubleshooting (2)
15System Reboot and Card Reset      TroubleshootingAn      unexpected reboot of a switch or reset of a card will interrupt running      services. This section helps you quickly understand how to handle such      problems. Knowing the possible causes of such problems, you can take      preventive measures against some causes to protect running services.
16A PD Cannot Be Powered OnThis      document describes how to troubleshoot A PD Cannot Be Powered On, including      the principles, roadmap, example.
17Packet Loss TroubleshootingWhen      managing and maintaining a network, we may encounter intermittent network      disconnection caused by transmission delay or slow network access speed. Most      of these symptoms are caused by packet loss.Quickly isolating and rectifying      the failures are important.This document analyzes the packet loss symptoms on      the network, describes the fault locating and fixing methods, and provides      typical cases and reference for you to fix the packet loss problems.
18Attack Defense for S Series SwitchesThis      document describes how to determine attack types and what measures need to be      taken to defend against attacks of specified types. This document also      provides the recommended local attack defense configurations.
 19HOT FAQThis      document provides the questions you may encounter during the installation,      configuration, and maintenance of the switch and the*****swers.
 20Designated Interface Is Blocked After      Receiving Low-Priority PacketsDescribes      how to process packets when the designated port receives low-priority      packets.
 21An Eth-Trunk in LACP Mode Frequently      Goes Up and DownDescribes      how to handle the situation when the Eth-Trunk on a switch in LACP mode      frequently goes Up and Down.
 22When a Switch Is Dual-homed to ME60s      and Has PIM Configured, Unidirectional PIM Communication Occurs, Causing Two      DRsDescribes      how to handle the situation when two DRs are deployed.
 23The Interface Address of a Downstream      Router Cannot Be Pinged RemotelyCannot      Be Pinged Remotely Describes a situation that the interface address of a      downstream router cannot be pinged remotely.
 24Users Connected to the Switch Cannot      Go OnlineDescribes      how to handle the situation when users connected to the switch are unable to      go online.
 25A Switch Displays Logs Indicating that      a Large Number of Packets Are Dropped Because the Rate Exceeds the CPCARDescribes      a situation that a Switch displays logs indicating that a large number of      packets are dropped because the rate exceeds the CPCAR.
 26The Multicast Traffic Suppression      Configuration of a Switch Does Not Take Effect on Downstream ReceiversWhy      does the multicast traffic suppression configuration of a switch not take      effect when an ACL is configured?
 27PCs and the Gateway Cannot Communicate      with Each Other Due to the Rate Limit of ARP Miss PacketsPCs      and the gateway cannot communicate with each other because the rate limit of      ARP Miss packets is incorrectly configured.
 28L2PT FailsDescribes      the L2PT failure.
 29The IP Address of the Management      Interface Cannot Ping the Gateway IP AddressThe      management interface is connected to an interface on the device, but the IP      address of the management interface fails to ping the gateway.
 30Two Master Devices Exist in a VRRP      Group in VRRP+MSTP NetworkingDescribes      how to handle the situation when two master devices exist in VRRP+MSTP      networking.
 31A Switch Fails to Connect to a Cisco      Device Through an Eth-Trunk Interface in LACP ModeDescribes      a situation that a switch fails to connect to a Cisco device through an      Eth-Trunk interface in LACP mode.
 32The IPTV Service Is Abnormal After a      Switch Is Powered Off and ResetWhy      does the IPTV service become abnormal after a switch is powered off and      reset?
 33The Delay Is Long When a PC Connected      to a Switch Pings a Base StationDescribes      a situation that the delay is long when a PC connected to a switch pings a      base station.
 34Multicast Services Are Abnormal Due to      Inconsistent PIM Neighbor Election Rules After the Upgrade from V100R006Describes      a situation that multicast services are abnormal due to inconsistent PIM      neighbor election rules after the switch version V100R006 is upgraded.
 35A Gateway Fails to Ping a PC Connected      to the VRRP Backup DeviceDescribes      a situation that a gateway fails to ping a PC connected to the VRRP backup      device.
 36The S9300 Fails to Ping a CameraDescribes      a situation that the device fails to ping a camera.
 37A PC Fails to Obtain an IP Address      from the Switch Connected to ItDescribes      how to handle the situation when a PC fails to obtain an IP address from the      switch connected to it.
 38Service Forwarding Fails Due to ARP      Entry Fixing on a Switch After a Firewall UpgradeWhy      does service forwarding fail due to ARP entry fixing on a switch?
 39Traffic Forwarding Fails on an ERPS      RingDescribes      how to handle the situation when traffic forwarding fails on an ERPS ring.
 40Some Eth-Trunk Interfaces Are Down and      Some Are Up Due to Incorrect Interface Connections After LACP NegotiationDescribes      a situation that some Eth-Trunk interfaces are down and some Eth-Trunk      interfaces are Up due to incorrect interface connections after LACP      negotiation.
 41Services Fail to Be Switched to the      VRRP Backup Device in Time When the Link to the VRRP Master Device FailsDescribes      a situation that services fail to be switched to the VRRP backup device in      time.
 42Some Samsung Boxes Connected to a      Switch Fail to Be Awakened Through WOLDescribes      a situation that some Samsung boxes connected to a switch fail to be awakened      through WOL.
 43Packets Are Unevenly Load Balanced      Among Eth-Trunk Interfaces After Unicast Packets Are Converted into Broadcast      PacketsDescribes      a situation that packets are unevenly load balanced among Eth-Trunk      member interfaces on a switch after unicast packets are converted into      broadcast packets.
 44Packets Are Unevenly Load Balanced      Among Eth-Trunk Member Interfaces That Transmit Multicast PacketsDescribes      a situation that packets are unevenly load balanced among Eth-Trunk member      interfaces that transmit multicast packets.
 45Services Are Interrupted After a      Switch Is Upgraded From V100R002 to V200R010Describes      a situation that services are interrupted after a switch is upgraded      from V100R002 to V200R010.
 46An Access Switch Cannot Ping the      Gateway When the Uplink and Downlink Interfaces of the Aggregation Switch Are      Bound to Eth-Trunk Describes      a situation that an access switch cannot ping      the gateway when the uplink and downlink interfaces of the aggregation switch      are bound to Eth-Trunk respectively.
 47After a License Is Loaded to a Switch      with Dual MPUs to Enable MPLS, the Switch Fails to Set Up LDP SessionsDescribes a situation that after      a License is Loaded to a switch with dual MPUs to enable MPLS, the switch      fails to set up LDP sessions.
 48A GRE Tunnel Cannot Go Up After      Keepalive Detection Is ConfiguredDescribes a situation that a      GRE tunnel cannot go up after keepalive detection is configured.
 49Remote Cross Cannot Be Performed for      L3VPN RoutesDescribes  a situation that remote cross cannot be performed for L3VPN routes.
 50Ping Packets Are Discarded Due to the      Flood of TC Packets Describes  a situation that  Ping packets are discarded due to the  flood of TC packets
 51NTP Clock Synchronization Delays for      Seconds Due to NTP Configuration Faults on Modular SwitchesDescribes  a situation that  NTP Clock Synchronization delays for  seconds due to NTP configuration faults on modular Switches
 52Packet Loss Occurs on the Peer Device      After the NE Router Is Replaced with an S Series SwitchDescribes  a situation that Packet Loss occurs on the peer device  after the NE Router is replaced with an S Series Switch 
 53An Exception Occurs When Clock      Synchronization Is Performed on an S Series Switch Functioning as the NTP      Client Describes  a situation that an Exception Occurs when Clock Synchronization is performed on an S Series Switch functioning as the NTP client
 541% of Packets Are Discarded When the      Ping Operation is Performed on an S Series Switch That Is Connected to an NE      RouterDescribes  a situation that 1% of Packets are discarded when the Ping operation is performed on an S Series Switch that is connected to an NE Router
 55Routes Cannot Be Advertised Because      the Number of Interfaces Exceeds the Upper Limit on a Single OSPF ProcessDescribes  a situation that Routes cannot be advertised because the number of interfaces exceeds the upper Limit on a single OSPF Process
 56The Clock Information Cannot Be      Synchronized When an AR Router Is Connected to SwitchDescribes  a situation that The Clock information cannot be Synchronized when an AR Router is connected to Switch
 57Preference of the IBGP Route Changed      Using the Preference Command Does Not Take EffectDescribes a situation that preference      of the IBGP route changed using the preference command does not take effect.
 58SSH Packets Fail to Be Forwarded      Through the GRE Tunnel Established Between the S5720EI and S7706Describes a situation that SSH  packets fail to be forwarded through the GRE tunnel established between the      S5720EI and S7706.



This post was last edited by DOTA at 2019-2-22 15:46.

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user_2790689  Expert   Created May 06, 2015 17:27:47 Helpful(2) Helpful(2)

Thank you for sharing.

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All_About_Switch     Created Sep 29, 2015 14:51:20 Helpful(2) Helpful(2)

Hi,friend, we add the example for VOIP, are there what you want?
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phebvfjqsx_from_linkedin  Novice   Created Sep 29, 2015 17:39:53 Helpful(1) Helpful(1)

Hi, thanks for reply, yes it help
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mc185369976_     Created Jun 24, 2015 16:52:20 Helpful(1) Helpful(1)

Thank you !!!

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f80045609     Created Aug 04, 2015 15:11:42 Helpful(1) Helpful(1)

good documantation

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alison.nascimento     Created Oct 29, 2015 01:20:13 Helpful(1) Helpful(1)

Support material for me. 
Best regards.
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user_195911     Created Jun 08, 2015 13:42:51 Helpful(1) Helpful(1)

It's cool Thank you~

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phebvfjqsx_from_linkedin  Novice   Created Sep 23, 2015 21:05:20 Helpful(1) Helpful(1)

Thanks! how about VOIP???

Configurations, rules, etc.

Mc GRATH Ricardo

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All_About_Switch     Created Jun 10, 2015 08:58:46 Helpful(1) Helpful(1)

You are welcome. I am very happy you like it~

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