Netgear XCM8806 Chassis User Manual - Page 535

NETGEAR 8800 User Manual show stpd { | detail} STPD BPDU Tunneling You can configure XCM8800 to allow a BPDU to traverse a VLAN without being processed by STP. This is known as BPDU tunneling. There are differences in how to configure this behavior in XCM8800. The examples in this section show how you might have used this feature in NETGEAR 8800 and how to configure STPD BPDU tunneling with XCM8800. You may be more familiar configuring STPD BPDU tunneling on NETGEAR devices. In the NETGEAR 8800, you specify the VLAN to add to the STPD and then you "ignore" the STP BPDUs. By ignoring the STP BPDUs, the switch prevents the ports in the VLAN from becoming part of the STPD. In XCM8800, you specify the VLAN to add to the STPD and then you disable that STPD. By disabling the STPD, the switch allows the ports associated with the VLAN to continue passing traffic and the switch forwards the BPDUs without adding any STP information. STPD 3 VLAN 3 STPD 2 VLAN 2 STPD 1 VLAN 1 1:1 1:2 1:3 1:1 1:2 1:1 1:3 Switch A 2:1 Switch B 2:1 2:1 Switch C Service provider L2 EX_180 Figure 34. Sample Network Using STPD BPDU Tunneling The examples described below assume you have already done the following: • Created the VLANs v1, v2, and v3 • Configured the VLAN tags • Created the STPDs s1, s2, and s3 • Configured the STPD tags Chapter 18. STP | 535