Huawei AR200 series

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7.1 IP Performance Overview..............................................................................................................................175

7.2 IP Performance Features Supported by the AR150/200.................................................................................175

7.3 Optimizing IP Performance............................................................................................................................175

7.3.1 Establishing the Configuration Task.....................................................................................................175

7.3.2 Checking Validity of Source IP Addresses of Received Packets..........................................................176

7.3.3 Controlling IP packets with Source Route Options...............................................................................176

7.3.4 Configuring an Interface to Forward Broadcast Packets.......................................................................177

7.3.5 Configuring an Outbound Interface to Fragment IP Packets.................................................................177

7.3.6 Configuring an Interface to Send ICMP Redirection Packets...............................................................178

7.3.7 Setting the Mode in Which Protocol Packets Are Sent.........................................................................178

7.3.8 Checking the Configuration...................................................................................................................179

7.4 Configuring Load Balancing for IP Packet Forwarding.................................................................................181

7.4.1 Establishing the Configuration Task.....................................................................................................181

7.4.2 Configuring the Unequal-Cost Multiple Path During IP Packet Forwarding.......................................182

7.4.3 Checking the Configuration...................................................................................................................183

7.5 Configuring TCP Attributes...........................................................................................................................184

7.5.1 Establishing the Configuration Task.....................................................................................................184

7.5.2 Setting Values of TCP Timers...............................................................................................................184

7.5.3 Setting the Aging Time of the PMTU...................................................................................................185

7.5.4 Setting the Size of the TCP Sliding Window........................................................................................185

7.5.5 Setting the MSS of TCP Packets on an Interface..................................................................................186

7.5.6 Checking the Configuration...................................................................................................................186

7.6 Maintaining IP Performance...........................................................................................................................187

7.6.1 Clearing IP Performance Statistics........................................................................................................187

7.6.2 Monitoring the IP Running Status.........................................................................................................188

7.7 Configuration Examples.................................................................................................................................189

7.7.1 Example for Disabling the Sending of ICMP Redirection Packets.......................................................189

8 IP Unicast PBR Configuration................................................................................................192

8.1 PBR Overview................................................................................................................................................193

8.2 PBR Supported by the AR150/200.................................................................................................................193

8.3 Configuring IP Policy-based Routing.............................................................................................................193

8.3.1 Establishing the Configuration Task.....................................................................................................193

8.3.2 Defining the Matching Rule of PBR.....................................................................................................194

8.3.3 Defining Actions of PBR.......................................................................................................................195

8.3.4 Applying PBR........................................................................................................................................197

8.3.5 Checking the Configuration...................................................................................................................197

8.4 Configuration Examples.................................................................................................................................198

8.4.1 Example for Configuring IP Unicast PBR............................................................................................198

9 UDP Helper Configuration......................................................................................................202

9.1 UDP Helper Overview....................................................................................................................................203

9.2 UDP Helper Features Supported by the AR150/200......................................................................................203

9.3 Configuring UDP Helper................................................................................................................................204

Huawei AR150&200 Series Enterprise Routers

Configuration Guide - IP Service Contents

Issue 02 (2012-03-30) Huawei Proprietary and Confidential