I'm seeing this behaviour, but workaround does not work on all switches. (a few have been fine, but mostly i get no forwarded packets)
Removing the monitor session and recreating it does not work. Still no packets are forwarded.
example:
All RSPAN vlans have been removed. Did a "no monitor session", and then recreated it
lesa-ccr1-stack00#sh vlan | begin Remote
Remote SPAN VLANs
------------------------------------------------------------------------------
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
lesa-ccr1-stack00#
lesa-ccr1-stack00#sh monitor session all
Session 1
---------
Type : Local Session
Source Ports :
Both : Gi1/0/1-48,Gi2/0/1-46,Gi3/0/1-46,Gi4/0/1-46
Destination Ports : Gi2/0/48
Encapsulation : Native
Ingress : Disabled
lesa-ccr1-stack00#sh int gi 2/0/48
GigabitEthernet2/0/48 is up, line protocol is down (monitoring)
Hardware is Gigabit Ethernet, address is 00b8.b386.2fb0 (bia 00b8.b386.2fb0)
Description: SELKS SPAN
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:03:55, output hang never
Last clearing of "show interface" counters 00:00:13
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
lesa-ccr1-stack00#
