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Trouble hệ thống với sw2960 chạy dual fiber link
Hi các bạn,
Mình đang có vấn đề với hệ thống mạng như hình :
Vấn đề phát sinh khi mình nâng cấp đường truyền lên đường quang 20MB của VTN. Converter của ISP cắm vào 2 cổng fa0/5 (thuộc vlan4) và fa0/7 (thuộc vlan5). Nếu cắm song song 2 đường truyền này đường đi KBNN ( cổng fa0/7 trên sw và tunnel 9 trên router ) ping sang dest sẽ rớt gói , còn nếu để chạy riêng biệt từng đường một thì ok. Đường truyền 2 đường đã test ok khi chưa cắm vào hệ thống. Các bạn cùng support mình vấn đề này với.
Đây là file config của sw và router.
Router R01:
interface Tunnel9
description CT-KBNN
bandwidth 2048
ip address 172.17.0.14 255.255.255.252
ip mtu 1464
ip tcp adjust-mss 1424
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 7 1501040203222A2A
ip ospf hello-interval 5
ip ospf dead-interval 40
tunnel source 172.19.0.66
tunnel destination 172.19.0.10
interface GigabitEthernet0/1.4
description Ket noi modem CT - CCT
encapsulation dot1Q 4
ip address 172.19.0.74 255.255.255.248
no snmp trap link-status
!
interface GigabitEthernet0/1.5
description Ket noi modem CT - KBNN
encapsulation dot1Q 5
ip address 172.19.0.66 255.255.255.248
no snmp trap link-status
Sw01
interface FastEthernet0/5
switchport access vlan 4
switchport mode access
interface FastEthernet0/7
switchport access vlan 5
switchport mode access
SW01#sh int fa0/5
FastEthernet0/5 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 58bc.271f.0585 (bia 58bc.271f.0585)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 4/255, rxload 2/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:06, output 00:00:03, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 819000 bits/sec, 188 packets/sec
5 minute output rate 1781000 bits/sec, 235 packets/sec
43414252 packets input, 12726032944 bytes, 0 no buffer
Received 29376 broadcasts (29376 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 29376 multicast, 0 pause input
0 input packets with dribble condition detected
62111228 packets output, 58820747242 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
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
SW01#sh int fa0/7
FastEthernet0/7 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 58bc.271f.0587 (bia 58bc.271f.0587)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:05, output 00:00:07, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (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 310000 bits/sec, 60 packets/sec
564100 packets input, 96819466 bytes, 0 no buffer
Received 229132 broadcasts (186586 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 186586 multicast, 0 pause input
0 input packets with dribble condition detected
1693031 packets output, 879948104 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
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
R01#ping 172.19.0.10 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.19.0.10, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!.!!!!!!!!!!!!!.!!!
!!!!!!.!!!!!!!!.!!!!!!!!!!!!!!
Success rate is 95 percent (95/100), round-trip min/avg/max = 1/1/4 msc
Còn khi mà chạy riêng biệt từng đường thì ping ok
R01#ping 172.19.0.10 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.19.0.10, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 1/1/4 ms
Mình đang có vấn đề với hệ thống mạng như hình :
Vấn đề phát sinh khi mình nâng cấp đường truyền lên đường quang 20MB của VTN. Converter của ISP cắm vào 2 cổng fa0/5 (thuộc vlan4) và fa0/7 (thuộc vlan5). Nếu cắm song song 2 đường truyền này đường đi KBNN ( cổng fa0/7 trên sw và tunnel 9 trên router ) ping sang dest sẽ rớt gói , còn nếu để chạy riêng biệt từng đường một thì ok. Đường truyền 2 đường đã test ok khi chưa cắm vào hệ thống. Các bạn cùng support mình vấn đề này với.
Đây là file config của sw và router.
Router R01:
interface Tunnel9
description CT-KBNN
bandwidth 2048
ip address 172.17.0.14 255.255.255.252
ip mtu 1464
ip tcp adjust-mss 1424
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 7 1501040203222A2A
ip ospf hello-interval 5
ip ospf dead-interval 40
tunnel source 172.19.0.66
tunnel destination 172.19.0.10
interface GigabitEthernet0/1.4
description Ket noi modem CT - CCT
encapsulation dot1Q 4
ip address 172.19.0.74 255.255.255.248
no snmp trap link-status
!
interface GigabitEthernet0/1.5
description Ket noi modem CT - KBNN
encapsulation dot1Q 5
ip address 172.19.0.66 255.255.255.248
no snmp trap link-status
Sw01
interface FastEthernet0/5
switchport access vlan 4
switchport mode access
interface FastEthernet0/7
switchport access vlan 5
switchport mode access
SW01#sh int fa0/5
FastEthernet0/5 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 58bc.271f.0585 (bia 58bc.271f.0585)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 4/255, rxload 2/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:06, output 00:00:03, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 819000 bits/sec, 188 packets/sec
5 minute output rate 1781000 bits/sec, 235 packets/sec
43414252 packets input, 12726032944 bytes, 0 no buffer
Received 29376 broadcasts (29376 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 29376 multicast, 0 pause input
0 input packets with dribble condition detected
62111228 packets output, 58820747242 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
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
SW01#sh int fa0/7
FastEthernet0/7 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 58bc.271f.0587 (bia 58bc.271f.0587)
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:05, output 00:00:07, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (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 310000 bits/sec, 60 packets/sec
564100 packets input, 96819466 bytes, 0 no buffer
Received 229132 broadcasts (186586 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 186586 multicast, 0 pause input
0 input packets with dribble condition detected
1693031 packets output, 879948104 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
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
R01#ping 172.19.0.10 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.19.0.10, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!.!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!.!!!!!!!!!!!!!.!!!
!!!!!!.!!!!!!!!.!!!!!!!!!!!!!!
Success rate is 95 percent (95/100), round-trip min/avg/max = 1/1/4 msc
Còn khi mà chạy riêng biệt từng đường thì ping ok
R01#ping 172.19.0.10 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.19.0.10, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 1/1/4 ms
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