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November 28th, 2021 10:00
Line Protocol down on S4048-ON TenGigabitEthernet port- DAC Cable to Fortigate 200D
Good day,
Hardware:
Dell S4048-ON version OS 9.11; Fortigate 200F FortiOS 6.4.7
Problem:
I am unable to get a TenGigagbit port to the 4048 to establish the line protocol up. Both ends show the link is up. The switch is connected with active DAC cables to the Fortigate 200F. The cables are custom built for the correct transceivers on both ends by FS.com. Multiple cables have been tried.
The S4048-ON OS 9.11 only allows setting port speed to 100 or 1000, not 10000. It assumes that 10000 is always auto-negotiate.
The Fortigate port is set as a standard hardware port, with no IP address, and auto-negotiate.
I'm feeling very "dense" at this point. What am I missing? Any thoughts? Thanks in advance.
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S4048-ON port info:
vxrsw1#show int te 1/20
TenGigabitEthernet 1/20 is up, line protocol is down
Hardware is DellEth, address is e4:f0:04:ee:d8:26
Current address is e4:f0:04:ee:d8:26
Pluggable media present, SFP+ type is 10GBASE-CU2M
Medium is Twinax Copper
Interface index is 2099588
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :e4f004eed826
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed auto
Flowcontrol rx off tx off
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 43w4d1h
Queueing strategy: fifo
Input Statistics:
5 packets, 470 bytes
0 64-byte pkts, 5 over 64-byte pkts, 0 over 127-byte pkts
0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
5 Multicasts, 0 Broadcasts, 0 Unicasts
0 runts, 0 giants, 0 throttles
0 CRC, 0 overrun, 0 discarded
Output Statistics:
0 packets, 0 bytes, 0 underruns
0 64-byte pkts, 0 over 64-byte pkts, 0 over 127-byte pkts
0 over 255-byte pkts, 0 over 511-byte pkts, 0 over 1023-byte pkts
0 Multicasts, 0 Broadcasts, 0 Unicasts
0 throttles, 0 discarded, 0 collisions, 0 wreddrops
Rate info (interval 299 seconds):
Input 00.00 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Output 00.00 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Time since last interface status change: 43w4d1h
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vxrsw1#show running-config interface te 1/20
!
interface TenGigabitEthernet 1/20
no ip address
portmode hybrid
switchport
no shutdown
vxrsw1#
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DELL-Joey C
Moderator
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3.9K Posts
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November 28th, 2021 23:00
Hi @Amer Law,
I'm not a networking person, but I'll try to help out. I spoke to one of my networking co-worker and did advise that it's would be good to update the switch firmware to 9.14XX as there is some issues that it can cause the settings on 10G speed, since the switch supports 10G speed networking.
Also try changing the portmode to trunk.
That's what he advised.
Amer Law
2 Posts
0
November 29th, 2021 07:00
Thank you for the suggestion. I've been down that route trying various port modes. I think you may be right about the OS having some issue with these cables or the Fortigate. I just tried using two Dell fiber transceivers, even though it's not "certified" with Fortigate and I have both link and line protocol as "up".
FS is willing to exchange the DACs for fiber transceivers, so, I'm going to take the expedient way out and stop wasting time. At some point, I will update the switches when I can schedule a wide maintenance window. The two S4048-ON are running production VxRail systems, so I definitely walk on eggshells when it comes to doing anything with those switches.
Thanks again. I'll accept the upgrade to 9.14 as the probable solution.