Yes, they can.
Here is an example taken from my Cat3548XL:
switch#sh spanning-tree int gi 0/1
Interface Gi0/1 (port 67) in Spanning tree 1 is BLOCKING
Port path cost 3004, Port priority 128
Designated root has priority 4096, address 0005.74e3.59c0
Designated bridge has priority 49152, address 0003.6b7b.ff40
Designated port is 67, path cost 3012
Timers: message age 4, forward delay 0, hold 0
BPDU: sent 42, received 3752851
Interface Gi0/1 (port 67) in Spanning tree 199 is BLOCKING
Port path cost 3004, Port priority 128
Designated root has priority 4096, address 0005.74e3.5a22
Designated bridge has priority 49152, address 0003.6b7b.ff41
Designated port is 67, path cost 3012
Timers: message age 4, forward delay 0, hold 0
BPDU: sent 43, received 3752761
switch#sh int gi 0/1
GigabitEthernet0/1 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 0004.c176.54b1 (bia 0004.c176.54b1)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex (Full), 1000Mb/s, media type is CX_GIGASTACK
....
Regards,
Milan
