- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-06-2023 10:20 AM
Cisco c1710 Routers (Please find the attachment of the simple topology)
No routing protocols are configured yet.
R1#show ip interface brief
Ethernet0 10.0.0.1 YES NVRAM up up
FastEthernet0 192.168.1.100 YES NVRAM up up
R2#show ip interface brief
Ethernet0 10.0.0.2 YES NVRAM up up
FastEthernet0 192.168.2.100 YES NVRAM up up
Note: Tried by changing the interfaces connected to neighbor router/switch from Ethernet0 to FastEthernet0 vice versa.
Issue:
R1#
*Mar 1 00:02:21.555: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
*Mar 1 00:02:26.435: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
*Mar 1 00:02:31.555: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
*Mar 1 00:02:33.791: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
R2#
*Mar 1 00:03:55.239: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
*Mar 1 00:04:01.435: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
*Mar 1 00:04:02.675: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
*Mar 1 00:04:11.435: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
*Mar 1 00:04:13.295: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to up
Solved! Go to Solution.
- Labels:
-
Other Network
Accepted Solutions
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-12-2023 09:16 AM
Hello @MHM Cisco World @Kanan Huseynli @Georg Pauwen
Thank you for the response.
Issue got resolved after changing the Router model from c1710 to Cisco 3725.
I found there was a duplex mismatch with my switch port.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-06-2023 10:27 AM
Config speed and duplex
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-06-2023 10:40 AM
Hi @MHM Cisco World,
Thanks for the quick response.
Speed is not set, and both routers are running on Full duplex.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-06-2023 10:58 AM
Hardcode speed and check
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-07-2023 03:05 AM
Hi @MHM Cisco World
The c1710 router port fastEthernet 0, I can configure the speed but there is no option for duplex configuration.
On the other side (i86bi_Linux-L2-Adventerprisek9-ms.SSA.high_iron_20190423) Switch port ethernet 0, I can configure the duplex but there is no option for speed configuration.
please suugest further.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-08-2023 02:10 PM
%LINK-5-UPDOWN Vs %LINEPROTO-5-UPDOWN
first is L1 and second is L2 issue
but the it fastether I see this issue only in serial
can I see
show interface fastether in both router ?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-08-2023 03:18 PM
Hi,
better to use L3 IOU image (although it is not official cisco image) for router rather than something on dynamips.
Please rate and mark as an accepted solution if you have found any of the information provided useful.

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-08-2023 01:56 PM
Hello,
what kind of cables are you using ? The router-to-router requires a crossover cable, the router-to-switch requires a straight cable. Check if your interfaces support the 'auto-mdix' command.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-12-2023 09:16 AM
Hello @MHM Cisco World @Kanan Huseynli @Georg Pauwen
Thank you for the response.
Issue got resolved after changing the Router model from c1710 to Cisco 3725.
I found there was a duplex mismatch with my switch port.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
04-12-2023 09:19 AM
As I first guess' duplex/speed mismatch.
Great job friend
Thanks for update us
Have a nice day
