08-24-2010 05:50 AM - edited 03-04-2019 09:32 AM
Hi guys ,
I m facing drops while i hard code both links gi interfaces with 1000 full but with one line it works fine
also it is working fine with both links on 100 half and auto configuration .
here is the topology -
-gi0/0-------------------Gi0/1 primary core(4506-E)
|
rtr--BVI interface- |
2821 |
-gi0/1--------------------Gi0/1 Secondary core(4506-E)
Please suggest what can be the cause getting drops on 100 full settings .
--------------------------
madhu
08-24-2010 05:55 AM
Hello,
Please check the following compatible configurations:
http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note0918
6a00800a7af0.shtml#auto_neg_valid
http://www.dell.com/content/topics/global.aspx/power/en/ps1q01_hernan?c=us&c
s=555&l=en&s=biz
If you try to hardcode the interface, it will not have chance to negotiate
certain other parameters required. So, the packets could get dropped (due to
perceived errors)
Hope this helps.
Regards,
NT
08-24-2010 10:17 PM
Hi NT ,
Thanx for reply ,
My issue is while hardcoding speed duplex to 1000 full on gi interface on both side on two links as in diagram , it gives me drops .
while if i remove any one out of two link then it pings fine .
This means we can do the hardcode but its not working on two links with BVI one side .
cisco link is not opening -says -"The Page You Have Requested Is Not Available"
any suggestion ...
---------------------------
Madhu
08-24-2010 10:21 PM
Hello,
Please try the following URL:
http://tinyurl.com/2f5mnnc
http://tinyurl.com/2d7cx6u
If the two interfaces are incompatible, then you will see drops as the
interface parameters do not match. The second link explains the reasons for
auto speed/duplex settings. Set both ends to auto negotiate. That will fix
the issue.
Hope this helps.
Regards,
NT
08-25-2010 01:46 AM
Hello ,
As i mentioned 100 half and auto setting are working fine .
I need to hardcode it with 1000 full which is giving drops that also the case when i connec both links.
I think this is not problem with speed duplex settings as one link works find with these settings , drops are there when i connect both links .
Here are the interface configuration on primary , secondary core switces and the router as expalined in previous diagram .-
----------------core 1-----------------------------
#sh run int gigabitEthernet 2/3
Building configuration...
Current configuration : 166 bytes
!
interface GigabitEthernet2/3
switchport access vlan 100
switchport mode access
speed 1000
duplex full
end
-------------------------------core 2 --------------------
CORE02#sh run int gigabitEthernet 2/3
Building configuration...
Current configuration : 166 bytes
!
interface GigabitEthernet2/3
switchport access vlan 100
switchport mode access
speed 1000
duplex full
end
-----------router ----------------------------
interface GigabitEthernet0/0
no ip address
ip broadcast-address 0.0.0.0
duplex full
speed 1000
bridge-group 1
!
interface GigabitEthernet0/1
no ip address
ip broadcast-address 0.0.0.0
duplex full
speed 1000
bridge-group 1
!
interface BVI1
ip address 10.*.*.* 255.255.255.248
ip broadcast-address 0.0.0.0
!
--------------------------------------------
madhu
08-25-2010 06:23 AM
Hello,
Can you post the output of "show interface " for all the
interfaces involved?
Regards,
NT
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