5.8.3 Displaying Bridge Information................................................................................................

208

5.8.3.1 Viewing the Current Spanning Tree Information.............................................................................

208

5.8.3.2 Displaying the Current STA for Ports..............................................................................................

210

5.8.4 Displaying VLAN Information.................................................................................................

212

5.8.4.1 VLAN Dynamic Registration Information ........................................................................................

212

5.8.4.2 VLAN Forwarding Information ........................................................................................................

212

5.8.5 IP Multicast Registration Table ..............................................................................................

213

5.8.6 IP Menu..................................................................................................................................

214

5.8.6.1 Displaying Subnet Information........................................................................................................

214

5.8.6.2 ARP Table ......................................................................................................................................

215

5.8.6.3 Routing Table..................................................................................................................................

215

5.8.6.4 Multicast Table ...............................................................................................................................

217

5.8.6.4.1 Displaying IGMP Registration Table........................................................................................

218

5.8.6.4.2 Displaying the Multicast Forwarding Cache ............................................................................

219

5.8.6.4.3 Displaying the DVMRP Routing Table.....................................................................................

220

5.8.6.4.4 Displaying the DVMRP Neighbor Table ..................................................................................

221

5.8.6.5 OSPF Table ....................................................................................................................................

222

5.8.6.5.1 Display Interface Table............................................................................................................

222

5.8.6.5.2 Displaying the Link State Table...............................................................................................

222

5.8.6.5.3 Displaying the Neighbor Table................................................................................................

223

5.8.6.5.4 Displaying the Virtual Neighbor Table .....................................................................................

225

5.9 RESETTING THE SYSTEM..................................................................................................................

227

CHAPTER 6.ADVANCED TOPICS.........................................................................................................

228

6.1 LAYER 2 SWITCHING ........................................................................................................................

228

6.1.1 Unicast Switching...................................................................................................................

229

6.1.2 Multicast Switching ................................................................................................................

230

6.1.3 Spanning Tree Algorithm .......................................................................................................

230

6.2 LAYER 3 SWITCHING ........................................................................................................................

232

6.2.1 Initial Configuration ................................................................................................................

232

6.2.2 IP Switching ...........................................................................................................................

233

6.2.3 Routing Path Management ....................................................................................................

234

6.2.4 ICMP Router Discovery .........................................................................................................

234

6.2.5 Proxy ARP .............................................................................................................................

234

6.2.6 Routing Protocols...................................................................................................................

235

6.2.6.1 RIP and RIP-2 Dynamic Routing Protocols ....................................................................................

235

6.2.6.2 OSPFv2 Dynamic Routing Protocol................................................................................................

236

6.2.7 Non-IP Protocol Routing ........................................................................................................

238

6.3 VIRTUAL LANS ................................................................................................................................

239

6.3.1 Assigning Ports to VLANs......................................................................................................

240

6.3.1.1 VLAN Classification ........................................................................................................................

240

6.3.1.2 Port Overlapping.............................................................................................................................

240

6.3.1.3 Port-based VLANs..........................................................................................................................

240

6.3.1.4 Automatic VLAN Registration (GVRP)............................................................................................

240

6.3.2 Forwarding Tagged/Untagged Frames ..................................................................................

241

6.3.3 Connecting VLAN Groups .....................................................................................................

242

6.4 MULTICAST FILTERING......................................................................................................................

243

6.4.1 IGMP Snooping......................................................................................................................

243

6.4.2 IGMP Protocol........................................................................................................................

243

6.4.3 GMRP Protocol......................................................................................................................

244

6.4.4 DVMRP Routing Protocol ......................................................................................................

244

6.5 CLASS-OF-SERVICE(COS) SUPPORT ...............................................................................................

245

6.6 BOOTP/DHCP RELAY....................................................................................................................

246

6.7 SECURITY FEATURES .......................................................................................................................

247

6.7.1 SNMP Community Strings .....................................................................................................

247

6.7.2 User Name and Passwords ...................................................................................................

247

6.7.3 MAC Address Filters..............................................................................................................

247

6.7.4 IP Address Filters...................................................................................................................

247

6.8 SNMP MANAGEMENT SOFTWARE ....................................................................................................

248

6.9 REMOTE MONITORING (RMON) .......................................................................................................

248

APPENDIX A TROUBLESHOOTING.....................................................................................................

249

A.1 TROUBLESHOOTING CHART .............................................................................................................

249

A.2 UPGRADING FIRMWARE VIA THE SERIAL PORT ..................................................................................

250

WGS3 Layer 3 Switch User’s Manual