ADTRAN NetVanta 3000 Series - Manual (Page 6)

Bridging: NetVanta 3000 Series Routers
Page 6
Troubleshooting the Application
If workstations at one end of the link cannot access workstations on the other end, use the
following tools to help determine the cause:
•
Use the show interface (T1 1/1, or DDS 1/1, or Serial 1/1) command to display
information regarding the state of the physical layer.
•
Link Layer:
show frame pvc – This command displays whether the frame relay virtual interface is
active, inactive, or deleted.
Router#sh fr pvc
Frame Relay Virtual Circuit Statistics for interface FR 1
Active Inactive Deleted Static
local 1 0 0 1
DLCI = 16, DLCI USAGE = LOCAL , PVC STATUS = ACTIVE, INTERFACE = FR 1.16
MTU: 1500
input pkts:
10 output pkts: 10 in bytes: 1000
out bytes: 1000 dropped pkts: 0 in FECN pkts: 0
in BECN pkts: 0 in DE pkts: 0 out DE pkts: 0
pvc create time: 00:00:00:15 last time pvc status changed:
00:00:00:47
show ppp 1 – Shows the state of the PPP connection.
Router# sho int ppp 1
ppp 1
Link state is OPENED
Internet address is 192.168.1.1, Mask is 255.255.255.0
Far end internet address is 192.168.1.2
MTU is unknown
BW 1544 Kbit
Keepalive set (10 sec)
Authentication protocol is NONE
OPEN: LCP, IPCP
CLOSED: Bridge
8 packets input, 134 bytes
Received 8 broadcasts
0 input errors, 0 discards
9 packets output, 162 bytes
0 output errors, 0 discards
•
show bridge 1 – This command gives the current state of the bridge group and the
forwarded addresses.
When troubleshooting any network problem, it is essential to work through all layers of the OSI
model beginning with the physical layer. For bridging applications, verify that the interface and link
layer protocol are functioning properly before troubleshooting the bridging configuration.