Mixed stp and rstp networks, Edge port – Allied Telesis AT-S81 User Manual
Page 143

AT-S81 Management Software User’s Guide
Section II: Menus Interface
143
Figure 31. Edge Port
A port can be both a point-to-point and an edge port at the same time.
Figure 32 illustrates a port functioning as both a point-to-point and edge
port. You must manually configure the edge port status.
Figure 32. Point-to-Point and Edge Port
Determining whether a bridge port is point-to-point, edge, or both, can be a
bit confusing. For that reason, do not change the default values for this
RSTP feature unless you have a good grasp of the concept. In most
cases, the default values work well.
Mixed STP and
RSTP Networks
RSTP IEEE 802.1w is fully compliant with STP IEEE 802.1d. Your network
can consist of bridges running both protocols. STP and RSTP in the same
network can operate together to create a single spanning tree domain.
The switch monitors the traffic on each port for BPDU packets. When you
Edge Port
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
AT-8000/8POE
8 Port POE Fast Ethernet Switch
PoE
9
9R
1
3
5
7
2
4
6
8
TERMINAL POR
T
1
3
5
7
2
4
6
8
9
9R
POWER
10/100/1000 Base-T
SFP
UPLINK PORT
RS-232
DET ON ON
100 LINK ACT
10 LINK ACT
PD ON
MAX CURRENT
PD ERR
10/100 LINK
1000 LINK
ACT
ACT
CLASS 1
LASER PRODUCT
MAIN PORT ACTIVITY
UPLINK PORT ACTIVITY
820
Hub
Point-to-Point and Edge Port
Workstation
(Full-duplex Mode)
AT-8000/8POE
8 Port POE Fast Ethernet Switch
PoE
9
9R
1
3
5
7
2
4
6
8
TERMINAL POR
T
1
3
5
7
2
4
6
8
9
9R
POWER
10/100/1000 Base-T
SFP
UPLINK PORT
RS-232
DET ON ON
100 LINK ACT
10 LINK ACT
PD ON
MAX CURRENT
PD ERR
10/100 LINK
1000 LINK
ACT
ACT
CLASS 1
LASER PRODUCT
MAIN PORT ACTIVITY
UPLINK PORT ACTIVITY
820