All About Switches (feature description, configuration and troubleshooting) Highlighted

Latest reply: Nov 19, 2019 09:23:21 30139 65 31 11

This post talks about All About Switches (feature description, configuration and troubleshooting of S2700, S5700, S5720, S6700, S6720, S7700, S12700). 


All About Switches is a series of switch materials released. It covers top issues collected from Huawei Global Service Hotline. We hope these materials will be helpful to 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 Identifying 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).
LicenseThe following is the top issues collected from Huawei Global Service Hotline.
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 Network

1. 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


1

User Login Password

Is 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.

2

How to Check Transceiver Information

Describes how to check optical transceiver information if an optical transceiver does not work normally.

3

Tips on Identifying Indicators on Fixed Switches

Describes meanings of indicator colors and states and indicator states that show faults on a switch.

4

Locating Eth-Trunk Faults

This article shows you how to locate Eth-Trunk faults.

5

Tips on Identifying Indicators on Modular Switches

Describes meanings of indicator colors and states, and how to identify faults o a switch based on indicator states.

6

Tell You About PoE

Describes switch models that support PoE and the PoE power that these switches can provide.

7

Locating the Problem of MAC Address Learning

This article shows you how tolocate the faults that MAC addresses cannot be learned.

8

22 Tips for S Series Switches

This article shows you 22 product improvements and tips, helping you configure and maintain the switches easily.

9

S Switch High CPU Usage Troubleshooting: How to Relieve CPU Load

This 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

10

Layer 2 Loop Troubleshooting

This document describes how to troubleshoot Layer 2 Loop, including the principles, roadmap, example.

11

A DHCP Client Cannot Obtain an IP Address

This document describes how to troubleshoot users' failures to obtain IP addresses, including the principles, roadmap, example, and FAQ.

12

Access Authentication Troubleshooting

The 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.

13

S Series Switches Ethernet Interface Physically Down

This document describes how to troubleshoot S Series Switches Ethernet Interface Physically Down, including the principles, roadmap, example, and FAQ.

14

Ping 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)

15

System Reboot and Card Reset Troubleshooting

An 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.

16

A PD Cannot Be Powered On

This document describes how to troubleshoot A PD Cannot Be Powered On, including the principles, roadmap, example.

17

Packet Loss Troubleshooting

When 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.

18

Attack Defense for S Series Switches

This  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.

 19

HOT FAQ

This document provides the questions you may encounter during the installation,  configuration, and maintenance of the switch and the*****swers.

 20

Designated Interface Is Blocked After  Receiving Low-Priority Packets

Describes how to process packets when the designated port receives low-priority  packets.

 21

An Eth-Trunk in LACP Mode Frequently Goes Up and Down

Describes how to handle the situation when the Eth-Trunk on a switch in LACP mode frequently goes Up and Down.

 22

When a Switch Is Dual-homed to ME60s  and Has PIM Configured, Unidirectional PIM Communication Occurs, Causing Two DRs

Describes how to handle the situation when two DRs are deployed.

 23

The Interface Address of a Downstream  Router Cannot Be Pinged Remotely

Cannot Be Pinged Remotely Describes a situation that the interface address of a downstream router cannot be pinged remotely.

 24

Users Connected to the Switch Cannot Go Online

Describes how to handle the situation when users connected to the switch are unable to go online.

 25

A Switch Displays Logs Indicating that a Large Number of Packets Are Dropped Because the Rate Exceeds the CPCAR

Describes a situation that a Switch displays logs indicating that a large number of packets are dropped because the rate exceeds the CPCAR.

 26

The Multicast Traffic Suppression Configuration of a Switch Does Not Take Effect on Downstream Receivers

Why does the multicast traffic suppression configuration of a switch not take      effect when an ACL is configured?

 27

PCs and the Gateway Cannot Communicate with Each Other Due to the Rate Limit of ARP Miss Packets

PCs and the gateway cannot communicate with each other because the rate limit of ARP Miss packets is incorrectly configured.

 28

L2PT Fails

Describes the L2PT failure.

 29

The IP Address of the Management Interface Cannot Ping the Gateway IP Address

The management interface is connected to an interface on the device, but the IP  address of the management interface fails to ping the gateway.

 30

Two Master Devices Exist in a VRRP  Group in VRRP+MSTP Networking

Describes how to handle the situation when two master devices exist in VRRP+MSTP networking.

 31

A Switch Fails to Connect to a Cisco Device Through an Eth-Trunk Interface in LACP Mode

Describe a situation that a switch fails to connect to a Cisco device through an      Eth-Trunk interface in LACP mode.

 32

The IPTV Service Is Abnormal After a Switch Is Powered Off and Reset

Why does the IPTV service become abnormal after a switch is powered off and reset?

 33

The Delay Is Long When a PC Connected to a Switch Pings a Base Station

Describes a situation that the delay is long when a PC connected to a switch pings a  base station.

 34

Multicast Services Are Abnormal Due to Inconsistent PIM Neighbor Election Rules After the Upgrade from V100R006

Describes a situation that multicast services are abnormal due to inconsistent PIM neighbor election rules after the switch version V100R006 is upgraded.

 35

A Gateway Fails to Ping a PC Connected to the VRRP Backup Device

Describes a situation that a gateway fails to ping a PC connected to the VRRP backup device.

 36

The S9300 Fails to Ping a Camera

Describes a situation that the device fails to ping a camera.

 37

A PC Fails to Obtain an IP Address  from the Switch Connected to It

Describes how to handle the situation when a PC fails to obtain an IP address from the switch connected to it.

 38

Service Forwarding Fails Due to ARP Entry Fixing on a Switch After a Firewall Upgrade

Why does service forwarding fail due to ARP entry fixing on a switch?

 39

Traffic Forwarding Fails on an ERPS  Ring

Describes how to handle the situation when traffic forwarding fails on an ERPS ring.

 40

Some Eth-Trunk Interfaces Are Down and      Some Are Up Due to Incorrect Interface Connections After LACP Negotiation

Describes a situation that some Eth-Trunk interfaces are down and some Eth-Trunk interfaces are Up due to incorrect interface connections after LACP negotiation.

 41

Services Fail to Be Switched to the VRRP Backup Device in Time When the Link to the VRRP Master Device Fails

Describes a situation that services fail to be switched to the VRRP backup device in time.

 42

Some Samsung Boxes Connected to a Switch Fail to Be Awakened Through WOL

Describes a situation that some Samsung boxes connected to a switch fail to be awakened through WOL.

 43

Packets Are Unevenly Load Balanced Among Eth-Trunk Interfaces After Unicast Packets Are Converted into Broadcast Packets

Describes  a situation that packets are unevenly load balanced among Eth-Trunk member interfaces on a switch after unicast packets are converted into broadcast packets.

 44

Packets Are Unevenly Load Balanced Among Eth-Trunk Member Interfaces That Transmit Multicast Packets

Describes a situation that packets are unevenly load balanced among Eth-Trunk member      interfaces that transmit multicast packets.

 45

Services Are Interrupted After a Switch Is Upgraded From V100R002 to V200R010

Describes a situation that services are interrupted after a switch is upgraded from V100R002 to V200R010.

 46

An 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.

 47

After a License Is Loaded to a Switch with Dual MPUs to Enable MPLS, the Switch Fails to Set Up LDP Sessions

Describes 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.

 48

A GRE Tunnel Cannot Go Up After Keepalive Detection Is Configured

Describes a situation that a GRE tunnel cannot go up after keepalive detection is configured.

 49

Remote Cross Cannot Be Performed for L3VPN Routes

Describes  a situation that remote cross cannot be performed for L3VPN routes.

 50

Ping 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

 51

NTP Clock Synchronization Delays for Seconds Due to NTP Configuration Faults on Modular Switches

Describes  a situation that  NTP Clock Synchronization delays for  seconds due to NTP configuration faults on modular Switches

 52

Packet Loss Occurs on the Peer Device After the NE Router Is Replaced with an S Series Switch

Describes  a situation that Packet Loss occurs on the peer device  after the NE Router is replaced with an S Series Switch 

 53

An 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

 54

1% of Packets Are Discarded When the Ping Operation is Performed on an S Series Switch That Is Connected to an NE Router

Describes  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

 55

Routes Cannot Be Advertised Because the Number of Interfaces Exceeds the Upper Limit on a Single OSPF Process

Describes  a situation that Routes cannot be advertised because the number of interfaces exceeds the upper Limit on a single OSPF Process

 56

The Clock Information Cannot Be Synchronized When an AR Router Is Connected to Switch

Describes  a situation that The Clock information cannot be Synchronized when an AR Router is connected to Switch

 57

Preference of the IBGP Route Changed Using the Preference Command Does Not Take Effect

Describes a situation that preference of the IBGP route changed using the preference command does not take effect.

 58

SSH Packets Fail to Be Forwarded Through the GRE Tunnel Established Between the S5720EI and S7706

Describes a situation that SSH packets fail to be forwarded through the GRE tunnel established between the  5720EI and S7706.





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user_2790689
Created May 6, 2015 09:27:47 Helpful(3) Helpful(3)

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Joharalisherazi
Joharalisherazi Created Nov 19, 2019 16:57:31
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All_About_Switch
Official Created Sep 29, 2015 06:51:20 Helpful(2) Helpful(2)

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Joharalisherazi
Joharalisherazi Created Nov 19, 2019 16:57:49
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phebvfjqsx_from_linkedin
Created Sep 29, 2015 09:39:53 Helpful(1) Helpful(1)

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Joharalisherazi
Joharalisherazi Created Nov 19, 2019 16:58:02
thats are very helpful for us  
mc185369976_
Created Jun 24, 2015 08:52:20 Helpful(1) Helpful(1)

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f80045609
Created Aug 4, 2015 07:11:42 Helpful(1) Helpful(1)

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alison.nascimento
Created Oct 28, 2015 17:20:13 Helpful(1) Helpful(1)

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user_195911
Created Jun 8, 2015 05:42:51 Helpful(1) Helpful(1)

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  • convention:

phebvfjqsx_from_linkedin
Created Sep 23, 2015 13:05:20 Helpful(1) Helpful(1)

Thanks! how about VOIP???

Configurations, rules, etc.

Mc GRATH Ricardo

  • x
  • convention:

All_About_Switch
Official Created Jun 10, 2015 00:58:46 Helpful(1) Helpful(1)

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

  • x
  • convention:

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