Huawei V200R001C01 - Page 7

6.1.5 A Call Fails to Be Connected................................................................................................................149
6.1.6 Calling Number Is Not Displayed on the Called Party's Telephone.....................................................152
6.1.7 Fax Service Fails...................................................................................................................................155
6.1.8 A SIP AG Cannot Work Properly.........................................................................................................158
7 IP Forwarding and Routing.....................................................................................................162
7.1 A Ping Operation Fails...................................................................................................................................163
7.1.1 The Ping Operation Fails.......................................................................................................................163
7.1.2 Troubleshooting Cases..........................................................................................................................171
7.2 DHCP Troubleshooting..................................................................................................................................173
7.2.1 A Client Cannot Obtain an IP Address (the AR2200-S Functions as the DHCP Server).....................173
7.2.2 A Client Cannot Obtain an IP Address (the AR2200-S Functions as the DHCP Relay Agent)...........178
7.3 RIP Troubleshooting.......................................................................................................................................181
7.3.1 Device Does not Receive Partial or All the Routes...............................................................................182
7.3.2 Device Does not Send Some or All Routes...........................................................................................185
7.4 OSPF Troubleshooting...................................................................................................................................189
7.4.1 The OSPF Neighbor Relationship Is Down..........................................................................................189
7.4.2 The OSPF Neighbor Relationship Cannot Reach the Full State...........................................................194
7.4.3 Trouble Cases........................................................................................................................................198
8 Multicast......................................................................................................................................205
8.1 Layer 3 Multicast Troubleshooting................................................................................................................206
8.1.1 Multicast Traffic Is Interrupted.............................................................................................................206
8.1.2 The PIM Neighbor Relationship Remains Down..................................................................................209
8.1.3 The RPT on a PIM-SM Network Fails to Forward Data.......................................................................212
8.1.4 The SPT on a PIM-SM Network Fails to Forward Data.......................................................................216
8.1.5 MSDP Peers Cannot Generate Correct (S, G) Entries...........................................................................221
8.1.6 The Multicast Device Cannot Generate IGMP Entries or MLD Entries...............................................226
9 QoS...............................................................................................................................................231
9.1 Traffic Policy Troubleshooting......................................................................................................................232
9.1.1 Traffic Policy Fails to Take Effect........................................................................................................232
9.1.2 Troubleshooting Cases..........................................................................................................................235
9.2 Priority Mapping Troubleshooting.................................................................................................................237
9.2.1 Packets Enter Incorrect Queues.............................................................................................................237
9.2.2 Priority Mapping Results Are Incorrect................................................................................................240
9.2.3 Troubleshooting Cases..........................................................................................................................244
9.3 Traffic Policing Troubleshooting...................................................................................................................247
9.3.1 Traffic Policing Based on Traffic Classifiers Fails to Take Effect.......................................................247
9.3.2 Interface-based Traffic Policing Results Are Incorrect.........................................................................248
9.3.3 Troubleshooting Cases..........................................................................................................................251
9.4 Traffic Shaping Troubleshooting....................................................................................................................252
9.4.1 Queue-based Traffic Shaping Results Are Incorrect.............................................................................252
9.4.2 Troubleshooting Cases..........................................................................................................................255
Huawei AR2200-S Series Enterprise Routers
Troubleshooting Contents
Issue 01 (2012-01-06) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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