Wan Performance Problems between Cisco against FiberNet Dusac_350

jesseniatnr · ‎03-13-2018

We recently change our LAN infraestructure to WAN. We Are having some problem on the data transfer and also de applications has terrible time performance. We change from 10 min to 40 minutes in some applications. We have a PPP connection between CPD using the FiberNet Dusac_350 equipment and the two core equipment Side A WS-C4750R-E version 12.2 and the SIDE B WS-C3850 ver 3.07.05E.

We have a portchannel using to 10GB links againt both core equipments.

TenGigabitEthernet3/1/4 is up, line protocol is up (connected)

Hardware is Ten Gigabit Ethernet, address is
Description: -- TENGIGALAN --
MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 10Gb/s, link type is auto, media type is SFP-10GBase-SR
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:04, output never, output hang never
Last clearing of "show interface" counters 3w0d
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 71348000 bits/sec, 7155 packets/sec
5 minute output rate 8064000 bits/sec, 1843 packets/sec
24476766716 packets input, 34179611248524 bytes, 0 no buffer
Received 73736261 broadcasts (70665028 multicasts)
0 runts, 0 giants, 0 throttles
2 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 70665028 multicast, 0 pause input
0 input packets with dribble condition detected
6194226515 packets output, 3239561687294 bytes, 0 underruns
0 output errors, 0 collisions, 2 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

same for all the interfaces attached. Can we have to change the MTU for this type of connection? Or the problem can be related for the incompability between the Gbics againt the Dusac?

We are very lost in this problem because any body find out a reason to think somehting is wrong or bas configured.

Thanks

Joseph W. Doherty · ‎03-13-2018

Often a degradation of performance, when moving from LAN to WAN, even if bandwidths remain the same, is often due to the additional distance based latency.

jesseniatnr · ‎03-13-2018

Thanks for the reply,

The LAN to WAN was 2Gb to 10GB and the transfer rate do no increase up to 10Mb. The communication doesnt seem working correctly. We know the increment on the latency but the performance is very bad for a PPP circuito 10GB.

Thanks

jesseniatnr · ‎03-13-2018

Hello Joseph,

The LAN to WAN was 2Gb increase to10GB and the transfer rate maintain the 10Mb. The communication doesnt seem working correctly. We know the increment on the latency but the performance is very bad for a PPP circuit 10GB. We start thinkg that it can be a compatibility problem between ppp equipment and our electronic.

Thanks

Joseph W. Doherty · ‎03-13-2018

Even TCP's bulk transfer rates are often impacted by additional WAN latency. First a TCP host's RWIN needs to allow for the path's BDP (bandwidth delay product). Second, any packet lost recovery is slowed by additional RTT latency. (Search out LFN [long fat networks] issues for more info.)

Georg Pauwen · ‎03-13-2018

Hello,

post the configs of both ends. Which device(s) do(es) the PPP ?

jesseniatnr · ‎03-13-2018

We have a port channel with two interface betwen sites. The PPP is do it throu ISP Telefonica using level one equipment. Fibrenet Dusac_350 equipments.

Side A Interface config - Cisco WS-C4507 R-E ver 12.2 (44r)sg3

NAME#sh inter tenGigabitEthernet 3/1
TenGigabitEthernet3/1 is up, line protocol is up (connected)
Hardware is Ten Gigabit Ethernet Port, address is
Description: --- EtherChannel TenGIGALAN ---
MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
reliability 255/255, txload 2/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-SR
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:04, output never, output hang never
Last clearing of "show interface" counters 4w0d
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 4
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 3518000 bits/sec, 1399 packets/sec
5 minute output rate 98962000 bits/sec, 9506 packets/sec
7611180974 packets input, 4068179047447 bytes, 0 no buffer
Received 44891904 broadcasts (37869256 multicasts)
0 runts, 0 giants, 0 throttles
6 input errors, 6 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
30487089709 packets output, 42526202943582 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

Name#sh inter tenGigabitEthernet 4/1
TenGigabitEthernet4/1 is up, line protocol is up (connected)
Hardware is Ten Gigabit Ethernet Port, address is
Description: --- EtherChannel TenGIGALAN
MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10Gb/s, link type is auto, media type is 10GBase-SR
input flow-control is off, output flow-control is off
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:23, output never, output hang never
Last clearing of "show interface" counters 4w0d
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 12030000 bits/sec, 3399 packets/sec
5 minute output rate 5959000 bits/sec, 1387 packets/sec
6252600371 packets input, 3892205672632 bytes, 0 no buffer
Received 68578118 broadcasts (64110417 multicasts)
0 runts, 0 giants, 0 throttles
56 input errors, 56 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
5445316137 packets output, 6039968851572 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out

interface Port-channel64
description --- EtherChannel TEnGIGALAN a ---
switchport
switchport trunk allowed vlan X;X;X;X;X;X
switchport mode trunk

Side B config Cisco WS-C3850 ver 3.07.05E
NAME#sh inter tenGigabitEthernet 3/1/4
TenGigabitEthernet3/1/4 is up, line protocol is up (connected)
Hardware is Ten Gigabit Ethernet, address is
Description: -- TENGIGALAN --
MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 2/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 10Gb/s, link type is auto, media type is SFP-10GBase-SR
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:26, output never, output hang never
Last clearing of "show interface" counters 3w1d
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 92963000 bits/sec, 8902 packets/sec
5 minute output rate 4113000 bits/sec, 1475 packets/sec
24635291799 packets input, 34383427850107 bytes, 0 no buffer
Received 74479010 broadcasts (71344010 multicasts)
0 runts, 0 giants, 0 throttles
2 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 71344010 multicast, 0 pause input
0 input packets with dribble condition detected
6226129525 packets output, 3252811052906 bytes, 0 underruns
0 output errors, 0 collisions, 2 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

Name#sh inter tenGigabitEthernet 4/1/4
TenGigabitEthernet4/1/4 is up, line protocol is up (connected)
Hardware is Ten Gigabit Ethernet, address is
Description: -- TENGIGALAN --
MTU 1500 bytes, BW 10000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 10Gb/s, link type is auto, media type is SFP-10GBase-SR
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:09, output never, output hang never
Last clearing of "show interface" counters 3w1d
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 6198000 bits/sec, 1255 packets/sec
30 second output rate 5845000 bits/sec, 2632 packets/sec
4648605028 packets input, 5237138949647 bytes, 0 no buffer
Received 37049002 broadcasts (33070730 multicasts)
0 runts, 0 giants, 0 throttles
79 input errors, 74 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 33070730 multicast, 0 pause input
0 input packets with dribble condition detected
5155610258 packets output, 3168926874269 bytes, 0 underruns
0 output errors, 0 collisions, 2 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

interface Port-channel20
description -- TENGIGALAN --
switchport trunk allowed vlan 7,14-17,50,51,99
switchport mode trunk
load-interval 30

Thanks,

Georg Pauwen · ‎03-13-2018

Hello,

what I meant was the full output of 'sh run' of both switches. Can you post that ?

jesseniatnr · ‎03-13-2018

Hi Georg,

Its too big th config and also there are sensitive data on that config. Tell me which part are you want to review. All the other areas works fine are only the inter CPD connection the 10GB part.

Thanks in advance.