HP GbE2c HP GbE2c Ethernet Blade Switch for c-Class BladeSystem Application Gu - Page 58
VLAN participation in Spanning Tree Groups, Configuring Multiple Spanning Tree Groups
UPC - 808736802215
View all HP GbE2c manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 58 highlights
Figure 9 Two VLANs on one instance of Spanning Tree Protocol In the following figure, VLAN 1 and VLAN 2 belong to different Spanning Tree Groups. The two instances of spanning tree separate the topology without forming a loop, so that both VLANs can forward packets between the switches without losing connectivity. Figure 10 Two VLANs on separate instances of Spanning Tree Protocol VLAN participation in Spanning Tree Groups The following table shows which switch ports participate in each Spanning Tree Group. By default, server ports (ports 1-16) do not participate in Spanning Tree, even though they are members of their respective VLANs. Table 12 VLAN participation in Spanning Tree Groups VLAN 1 VLAN 2 Switch 1 Switch 2 Spanning Tree Group 1 Port 17 Spanning Tree Group 1 Port 17 Spanning Tree Group 2 Port 18 Spanning Tree Group 2 Port 18 Configuring Multiple Spanning Tree Groups This section explains how to assign each VLAN to its own Spanning Tree Group on the switches 1 and 2. By default, Spanning Tree Groups 2-127 are empty, and Spanning Tree Group 1 contains all configured VLANs until individual VLANs are explicitly assigned to other Spanning Tree Groups. Except for the default Spanning Tree Group 1, which may contain more than one VLAN, Spanning Tree Groups 2-128 may contain only one VLAN each. NOTE: Each instance of Spanning Tree Group is enabled by default. Spanning Tree Protocol 58