We have a branch site where employees are experiencing network Intermittent issue from over a week now. They are not able to access any website when issue arrives, where browser displays "Page can not be displayed" error. We have raised ticket with ISP and troubleshooted with them and looks like there is no issue from their side.I am constantly pinging one of the test desktop placed in branch using IPERF3 and I found out one way packet drop. I have applied traffic shaping at interface, Also, packets drops are severe while pinging from branch side and when I increase saturation at the link.
Sometimes I have experienced latency delays too, but generally everything seems fine.
* Switch to router interface is 1 gig
* Router WAN link is 100 mbps
# Interfaces are shown below:
-Primary#sh int gig 0/1
giga-eth 0/1 is UP, line protocol is UP
Description: CL MPLS Circuit ID
Hardware address is ****************
Ip address is **********, netmask is 255.255.255.252
IP MTU is 1500 bytes
BW is 50000 Kbit
RJ-45 Shielded
100Mb/s, full-duplex
ARP type: ARPA; ARP timeout is 20 minutes
Last clearing of "show interface" counters: 15:21:37
5 minute input rate 4915632 bits/sec, 768 packets/sec
5 minute output rate 1643560 bits/sec, 676 packets/sec
Queueing method
Configured Queueing Method: fifo
Effective Queueing Method: weighted fair
Output queue: 0/130/1584/128/764 (size/highest/max total/threshold/drops)
Conversations 0/6/256 (active/max active/max total)
Available Bandwidth 7500 kilobits/sec
Priority Queue-limit 256 packets
Interface Shaper: 50000/64000/64000 (rate/budget/max budget)
6250 bytes added to budget every 1 ms
packet stats: 8728541/0/764/15613 (packets sent/waiting/dropped/delayed)
9335326 packets input, 4795257615 bytes
9335326 unicasts, 0 broadcasts, 0 multicasts input
0 unknown protocol, 0 symbol errors, 0 discards
0 input errors, 0 runts, 0 giants
0 no buffer, 0 overruns, 0 internal receive errors
0 alignment errors, 0 crc errors
8728541 packets output, 1995563304 bytes
8721718 unicasts, 5746 broadcasts, 1841 multicasts output
0 output errors, 0 deferred, 0 discards
0 single, 0 multiple, 0 late collisions
0 excessive collisions, 0 underruns
0 internal transmit errors, 0 carrier sense errors
0 resets, 0 throttles
#sh int gig 0/2
giga-eth 0/2 is UP, line protocol is UP
Hardware address is **********
Running 802.1Q Encapsulation
BW is 1000000 Kbit
RJ-45 Shielded
1Gb/s, full-duplex
Last clearing of "show interface" counters: 15:22:54
5 minute input rate 1757232 bits/sec, 713 packets/sec
5 minute output rate 5032544 bits/sec, 792 packets/sec
Queueing method: fifo
Output queue: 0/256/0 (size/max total/drops)
Interface Shaper: NOT ENABLED
8905894 packets input, 2047701539 bytes
8833621 unicasts, 62438 broadcasts, 9836 multicasts input
0 unknown protocol, 0 symbol errors, 0 discards
0 input errors, 0 runts, 0 giants
0 no buffer, 0 overruns, 0 internal receive errors
0 alignment errors, 0 crc errors
9474774 packets output, 4874784449 bytes
9422853 unicasts, 23267 broadcasts, 28654 multicasts output
0 output errors, 0 deferred, 0 discards
0 single, 0 multiple, 0 late collisions
0 excessive collisions, 0 underruns
0 internal transmit errors, 0 carrier sense errors
0 resets, 0 throttles
Please look into it.
