188
C
HAPTER
9: V
IRTUAL
LAN
S
The system imposes two important limits regarding the number of VLANs
and the number of protocols:
■
Number of VLANs supported on the system
— To determine the
minimum number of VLANs that the system can support, use the
equation described in “Number of VLANs” earlier in this chapter. The
system supports a maximum of 64 VLANs.
■
Maximum number of protocols
— Use the value 15 as the
maximum number of protocols that can be implemented on the
system. A protocol suite that is used in more than one VLAN is
counted only once toward the maximum number of protocols. For
example, the DECnet protocol suite uses 5 of the available
15 protocols, regardless of the number of VLANs that use DECnet.
Example: Protocol-based VLANs for Bridging
Figure 31 is an example of a VLAN bridging configuration that contains
three protocol-based VLANs (two IP and one IPX) that overlap on an FDDI
link (port 1 in each VLAN). (You can configure the link to be part of a
trunk, as described in Chapter 8.) The end stations and servers are on
100Mbps ports, with traffic segregated by protocol. They are aggregated
over the FDDI link.
Figure 31
Example of a Bridging Protocol-based VLAN Configuration
VID 13, IP-2 VLAN
(Ports 1, 16-18)
VID 16, IPX-1 VLAN
(Ports 1, 7-9)
VID 12, IP-1 VLAN
(Ports 1, 13-15)
IP-1 Server
IPX-1 Server
IP-2 Server
L2/3
L2/3
FDDI
IP-1
IP-2
IPX-1
Summary of Contents for CoreBuilder 3500
Page 44: ...44 CHAPTER 2 MANAGEMENT ACCESS ...
Page 58: ...58 CHAPTER 3 SYSTEM PARAMETERS ...
Page 86: ...86 CHAPTER 5 ETHERNET ...
Page 112: ...112 CHAPTER 6 FIBER DISTRIBUTED DATA INTERFACE FDDI ...
Page 208: ...208 CHAPTER 9 VIRTUAL LANS ...
Page 256: ...256 CHAPTER 10 PACKET FILTERING ...
Page 330: ...330 CHAPTER 12 VIRTUAL ROUTER REDUNDANCY PROTOCOL VRRP ...
Page 356: ...356 CHAPTER 13 IP MULTICAST ROUTING ...
Page 418: ...418 CHAPTER 14 OPEN SHORTEST PATH FIRST OSPF ...
Page 519: ...RSVP 519 Figure 94 Sample RSVP Configuration Source station End stations Routers ...
Page 566: ...566 CHAPTER 18 DEVICE MONITORING ...
Page 572: ...572 APPENDIX A TECHNICAL SUPPORT ...
Page 592: ...592 INDEX ...