Owner's Manual

Chapter 18. STP | 525
NETGEAR 8800 User Manual
When an STPD is disabled for a BPDU restrict configured port, an STP port in 802.1D
operation mode begins forwarding immediately, but in the RSTP or MSTP operation modes,
the port remains in the disabled state.
BPDU restrict is available on all of the three operational modes of STP: 802.1D, RSTP, and
MSTP.
Although edge safeguard is not available in 802.1D operation mode, when you configure
BPDU restrict you do so in a similar way, that is, as an extension of edge safeguard; then
only BPDU restrict is available on the port and not edge safeguard.
To configure BPDU restrict, use the following command:
configure {stpd} <stpd_name> ports edge-safeguard enable <port_list>
{bpdu-restrict} {recovery-timeout {<seconds>}}
BPDU restrict can also be configured by using the following commands:
configure {stpd} <stpd_name> ports bpdu-restrict [enable | disable] <port_list>
{recovery-timeout {<seconds>}}
configure stpd <stpd_name> ports link-type [[auto | broadcast | point-to-point]
<port_list> | edge <port_list> {edge-safeguard [enable | disable]
{bpdu-restrict} {recovery-timeout <seconds>}}]
To include BPDU restrict functionality when configuring link types or edge safeguard, see
Configuring Link Types on page 547 and Configuring Edge Safeguard on page 548.
Following shows a BPDU restrict configuration:
* XCM8806.1# configure s1 ports edge-safeguard enable 9 bpdu-restrict
recovery-timeout 400.
Following is sample output from the show s1 ports command resulting from the
configuration:
XCM8806.35 # show s1 ports
Port Mode State Cost Flags Priority Port ID Designated Bridge
9 EMISTP FORWARDING 20000 eDee-w-G-- 128 8009 80:00:00:04:96:26:5f:4e
Total Ports: 1
------------------------- Flags: ----------------------------
1: e=Enable, d=Disable
2: (Port role) R=Root, D=Designated, A=Alternate, B=Backup, M=Master
3: (Config type) b=broadcast, p=point-to-point, e=edge, a=auto
4: (Oper. type) b=broadcast, p=point-to-point, e=edge
5: p=proposing, a=agree
6: (partner mode) d = 802.1d, w = 802.1w, m = mstp
7: i = edgeport inconsistency
8: S = edgeport safe guard active
s = edgeport safe guard configured but inactive
8: G = edgeport safe guard bpdu restrict active in 802.1w and mstp
g = edgeport safe guard bpdu restrict active in 802.1d
9: B = Boundary, I = Internal
10: r = Restricted Role