extreme switch connected to cisco switch and losing packet


Userlevel 1
Hi All



Can someone help me, I have 2 ExtremeXOS 440 switches version 21.1.1.4 connected to cisco switch 6500.

Problem : when I’ doing continues ping I’m getting packet loss and when one switch responding to my pings another will not respond vice vasa .



This is my configuration on extreme switches

create vlan "internal-man-105"

configure vlan internal-man-105 tag 105

configure vlan internal-man-105 add ports 2:24 tagged

configure vlan internal-man-105 ipaddress 1.1.1.1 255.255.255.248

enable ipforwarding vlan internal-man-105

configure ports 2:24 auto on speed 1000 duplex full



this is my configuration on cisco switch



interface GigabitEthernet3

description Extreme-switch Uplink

switchport

switchport mode trunk

logging event link-status

logging event trunk-status

logging event bundle-status

logging event spanning-tree status

logging event subif-link-status

load-interval 30

keepalive 30

speed 1000

duplex full

udld port aggressive

mls qos trust cos

flowcontrol receive on

flowcontrol send on

spanning-tree portfast edge trunk

spanning-tree bpduguard enable



end

21 replies

Userlevel 6
Hello Siva,

What switch are you pinging and where are you pinging from? What are the IP addresses of each switch?
Userlevel 1
Patrick Voss wrote:

Hello Siva,

What switch are you pinging and where are you pinging from? What are the IP addresses of each switch?

Hi Patrick

My extreme switch IP address are 10.1.1.2 / 24 and 10.1.1.3 / 24 default gateway 10.1.1.1 /24
Cisco switch 10.1.1.1/24

i'm pinging extreme switch from my laptop cmd
Userlevel 4
Patrick Voss wrote:

Hello Siva,

What switch are you pinging and where are you pinging from? What are the IP addresses of each switch?

ip on your laptop is on the same subnet?
Userlevel 1
Patrick Voss wrote:

Hello Siva,

What switch are you pinging and where are you pinging from? What are the IP addresses of each switch?

Yes I can ping cisco switch fine and i can ping extreme switch time to time but i'm getting packet lost
Userlevel 2
Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick
Userlevel 1
Patrick Koppen wrote:

Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick

Hi Patrick

I have check Spanningtree on cisco log i dont see and any errors so i believe Spanningtree is not an issue problem .

* Slot-2 Stack.1 # configure ports 2:24 auto off speed 1000 duplex full Error: Auto negotiation off is not supported on copper medium of combo port 2:24 at 1G or 10G speed.

when I try to make it off i'm getting above error
How to configure speed on EXOS not to be auto ?
Userlevel 2
Patrick Koppen wrote:

Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick

I hope not. Gigabit should always use auto negotiation. Try speed auto on Cisco.
An please check the error counters. Without a picture of you network and a detailed
error description it's just fishing in the dark.
Userlevel 1
Patrick Koppen wrote:

Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick

Userlevel 1
Patrick Koppen wrote:

Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick

Please find the picture of my network

cs1.gwes# show interfaces gigabitEthernet 3/17 counters
Port InOctets InUcastPkts InMcastPkts InBcastPkts
Gi3/17 3189778338495 13137969188 30865 247

Port OutOctets OutUcastPkts OutMcastPkts OutBcastPkts
Gi3/17 3566633820062 15409148143 183850740 178504969
Userlevel 1
Patrick Koppen wrote:

Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick

cs1.gwes# show interfaces gigabitEthernet 3/45 GigabitEthernet3/45 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 0012.80ad.2b84 (bia 0012.80ad.2b84)
Description: Extreme-switch Uplink
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 4/255, rxload 17/255
Encapsulation ARPA, loopback not set
Keepalive set (30 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseT
input flow-control is on, output flow-control is on
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:25, output 00:00:02, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 4578
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 70059000 bits/sec, 18574 packets/sec
30 second output rate 19124000 bits/sec, 14889 packets/sec
10320396888 packets input, 4742698200852 bytes, 0 no buffer
Received 230115 broadcasts (104252 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 21018 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
8406500631 packets output, 1379426569159 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 4398662 PAUSE output
0 output buffer failures, 0 output buffers swapped out
Userlevel 1
Patrick Koppen wrote:

Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick

cs1.gwes# show interfaces gigabitEthernet 3/45 GigabitEthernet3/45 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 0012.80ad.2b84 (bia 0012.80ad.2b84)
Description: Extreme-switch Uplink
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 4/255, rxload 17/255
Encapsulation ARPA, loopback not set
Keepalive set (30 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseT
input flow-control is on, output flow-control is on
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:25, output 00:00:02, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 4578
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 70059000 bits/sec, 18574 packets/sec
30 second output rate 19124000 bits/sec, 14889 packets/sec
10320396888 packets input, 4742698200852 bytes, 0 no buffer
Received 230115 broadcasts (104252 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 21018 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
8406500631 packets output, 1379426569159 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 4398662 PAUSE output
0 output buffer failures, 0 output buffers swapped out

Userlevel 7
Patrick Koppen wrote:

Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick

speed 1000 on Cisco IOS uses auto-negotiation, speed 100 disables it
Userlevel 4
Patrick Koppen wrote:

Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick

any speed command on cisco disables auto-negotiation
to re-enable auto-negotiation you should issue
no speed
under selected interface
Userlevel 7
Patrick Koppen wrote:

Hi Siva,

on EXOS you turned auto-negotiation on and advertise only 1000/full.

Are you sure duplex full and speed 1000 does not turn auto-negotiation off on cisco?
Spanningtree or udld could be a problem. You should look at the error counters, fdb,
spanningtree, link state, ..... Turn on logging on IOS and EXOS. Does any happen?
Link los, errors disable, duplicate ip, arp change, TCN, ...?

show ip int brief
show interface
show controllers GigabitEthernet3
....

Regards
Patrick

Hi Nick,

"speed 1000" on Cisco IOS does not disable auto-negotiation, it just restricts the advertised speeds to gigabit only. This is a trap I have seen many people fall into when trying to interconnect non-Cisco and Cisco switches with a "fixed" speed of 1000.

Thanks,
Erik
Userlevel 6
Siva, Are the two switches(10.1.1.2,10.1.1.3) are in stacking? If so can you post the "show switch" output from both the switches?
Userlevel 1
Karthik Mohandoss wrote:

Siva, Are the two switches(10.1.1.2,10.1.1.3) are in stacking? If so can you post the "show switch" output from both the switches?

No they are not stacking
Userlevel 2
Hi Siva,

error counters look normal (pause is strange...). Could you tell us a little more about you problem?

  • What is the IP of your laptop?
  • Which port is you laptop connected to?
  • What are the exact timings of the packet losses (e.g. loss after every 30 seconds, or work for 10 seconds, stopps for 60 seconds....)?
But still... it could be anything...

Regards
Patrick
Userlevel 1
Patrick Koppen wrote:

Hi Siva,

error counters look normal (pause is strange...). Could you tell us a little more about you problem?

  • What is the IP of your laptop?
  • Which port is you laptop connected to?
  • What are the exact timings of the packet losses (e.g. loss after every 30 seconds, or work for 10 seconds, stopps for 60 seconds....)?
But still... it could be anything...

Regards
Patrick

Hi Patrick

My laptop IP address is in the same range 10.1.1.20/24
I have connected my laptop to port Gig 3/1 on a cisco switch.
The timing of packet loss is one extreme switch respond to ping while another switch is timing out, they can't respond on some time.
Please see my pings I have taken out a screen shot and hide my original IP address.

pl

Userlevel 6
configure ports 2:24 auto on speed 1000 duplex full as per the port number 2:24 it looks like a stacking switch to me but anyways can you share the "show switch" output from both the switches ?
Userlevel 1
Karthik Mohandoss wrote:

configure ports 2:24 auto on speed 1000 duplex full as per the port number 2:24 it looks like a stacking switch to me but anyways can you share the "show switch" output from both the switches ?

Hi Karthik

Yes there switch was gone be stacked by they are not stacked i will send configure now.

* Slot-2 Stack.1 # sho configuration #
# Module devmgr configuration.
#
configure snmp sysContact "support@extremenetworks.com, +1 888 257 3000"
configure slot 2 module X440G2-24t-10G4
configure sys-recovery-level slot 2 reset

#
# Module vlan configuration.
#
configure vlan default delete ports all
configure vr VR-Default delete ports 2:1-28
configure vr VR-Default add ports 2:1-28
configure vlan default delete ports 2:1-28
create vlan "DATA1A-CPT-108"
configure vlan DATA1A-CPT-108 tag 108
create vlan "internal-man-105"
configure vlan internal-man-105 tag 105
configure ports 2:24 medium copper auto on speed 1000 duplex full
configure vlan DATA1A-CPT-108 add ports 2:24 tagged
configure vlan DATA1A-CPT-108 add ports 2:1-8 untagged
configure vlan internal-man-105 add ports 2:24 tagged
configure vlan internal-man-105 add ports 2:9-12 untagged
configure vlan internal-man-105 ipaddress 10.255.255.62 255.255.255.248
enable ipforwarding vlan internal-man-105

#
# Module mcmgr configuration.
#

#
# Module fdb configuration.
#

#
# Module rtmgr configuration.
#
configure iproute add default 10.255.255.57

#
# Module policy configuration.
#

#
# Module aaa configuration.
#
configure account admin encrypted "$5$Ut3MCZ$5c7TStvzw.mVF/CPFHPqTSGUNDRDfiaCCDHE.PIDG3C"

#
# Module acl configuration.
#

#
# Module bfd configuration.
#

#
# Module cfgmgr configuration.
#

#
# Module dosprotect configuration.
#

#
# Module dot1ag configuration.
#

#
# Module eaps configuration.
#

#
# Module edp configuration.
#
enable cdp ports 2:24

#
# Module elrp configuration.
#

#
# Module ems configuration.
#

#
# Module epm configuration.
#

#
# Module erps configuration.
#

#
# Module esrp configuration.
#

#
# Module ethoam configuration.
#

#
# Module etmon configuration.
#

#
# Module exsshd configuration.
#

#
# Module hal configuration.
#

#
# Module idMgr configuration.
#

#
# Module ipSecurity configuration.
#

#
# Module ipfix configuration.
#

#
# Module lldp configuration.
#

#
# Module mrp configuration.
#

#
# Module msdp configuration.
#

#
# Module netLogin configuration.
#

#
# Module netTools configuration.
#

#
# Module ntp configuration.
#

#
# Module poe configuration.
#

#
# Module rip configuration.
#

#
# Module r.png configuration.
#

#
# Module snmpMaster configuration.
#

#
# Module stp configuration.
#

#
# Module synce configuration.
#

#
# Module techSupport configuration.
#

#
# Module telnetd configuration.
#

#
# Module tftpd configuration.
#

#
# Module thttpd configuration.
#

#
# Module twamp configuration.
#

#
# Module vmt configuration.
#

#
# Module vsm configuration.
Userlevel 1
Maybe I need to plug 2 switches on the different blade on cisco switch, I will do this tomorrow.
Userlevel 6
Siva, Is it possible to share the "show switch" output from both the switches ?
Userlevel 1
Karthik Mohandoss wrote:

Siva, Is it possible to share the "show switch" output from both the switches ?

Hi

Please find the configuration for the second switch.

* Slot-1 CS_03.1 # show configuration
#
# Module devmgr configuration.
#
configure snmp sysName "CS_03"
configure snmp sysLocation "CMNEXT"
configure snmp sysContact "0219107830"
configure slot 1 module X440G2-24t-10G4
configure sys-recovery-level slot 1 reset
configure slot 2 module X440G2-24t-10G4
configure sys-recovery-level slot 2 reset

#
# Module vlan configuration.
#
configure vlan default delete ports all
configure vr VR-Default delete ports 1:1-28,2:1-28
configure vr VR-Default add ports 1:1-28,2:1-28
configure vlan default delete ports 1:1-28,2:1-28
create vlan "DATA1A-CPT-108"
configure vlan DATA1A-CPT-108 tag 108
create vlan "internal-man-105"
configure vlan internal-man-105 tag 105
configure ports 1:24 medium copper auto on speed 1000 duplex full
configure vlan DATA1A-CPT-108 add ports 1:24 tagged
configure vlan DATA1A-CPT-108 add ports 1:1-10 untagged
configure vlan internal-man-105 add ports 1:24 tagged
configure vlan internal-man-105 add ports 1:17 untagged
configure vlan internal-man-105 ipaddress 10.255.255.59 255.255.255.248

#
# Module mcmgr configuration.
#

#
# Module fdb configuration.
#

#
# Module rtmgr configuration.
#
configure iproute add default 10.255.255.57

#
# Module policy configuration.
#

#
# Module aaa configuration.
#
Userlevel 1
I have to change the cable's and change ports on both Cisco switch and extreme switch but still experiencing the same issue.

At this stage, I think extreme switch are not the good one. 😞
Userlevel 6
Hi Siva, Can you share the "show switch" output from both the switches please? The last one you posted was "show conf" i am looking for the "show switch" output from both the switches and see what MAC address they have....

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