S4048-on, link issue

Question

Hi all,

I have a case.

example

Dell#show interfaces tengigabitethernet 1/3
TenGigabitEthernet 1/3 is up, line protocol is up
Port is part of Port-channel 3
Description: "HNAS-BE11-2 tg1"
Hardware is DellEMCEth, address is 68:4f:64:9b:33:34
Current address is 68:4f:64:9b:33:34
Pluggable media present, SFP+ type is 10GBASE-SR
Medium is MultiRate, Wavelength is 850nm
SFP+ receive power reading is -2.2695dBm
SFP+ transmit power reading is -2.2410dBm
Interface index is 2097412
Internet address is not set
Mode of IPv4 Address Assignment : NONE
DHCP Client-ID :684f649b3334
MTU 1554 bytes, IP MTU 1500 bytes
LineSpeed 10000 Mbit
Flowcontrol rx on tx off
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters 75w6d1h
Queueing strategy: fifo
Input Statistics:
99955186842 packets, 29836345043515 bytes
283962343 64-byte pkts, 80969932855 over 64-byte pkts, 3253693940 over 127-byte pkts
263754236 over 255-byte pkts, 55792694 over 511-byte pkts, 15128050774 over 1023-byte pkts
45868625 Multicasts, 4 Broadcasts, 99909318213 Unicasts
0 runts, 0 giants, 8 throttles
0 CRC, 0 overrun, 45868251 discarded
Output Statistics:
106253525607 packets, 154608445182542 bytes, 0 underruns
38208011 64-byte pkts, 3750750178 over 64-byte pkts, 276010356 over 127-byte pkts
514205542 over 255-byte pkts, 571265739 over 511-byte pkts, 101103085781 over 1023-byte pkts
145549409 Multicasts, 1438298516 Broadcasts, 104669677682 Unicasts
0 throttles, 0 discarded, 0 collisions, 0 wreddrops
Rate info (interval 299 seconds):
Input 40.00 Mbits/sec, 6859 packets/sec, 0.41% of line-rate
Output 18.00 Mbits/sec, 2439 packets/sec, 0.18% of line-rate
Time since last interface status change: 2d9h9m

I dont know symbol" throttles " . I want to know about " throttles " . And how " throttles " can appear.

thanks

DELL-Marco B · Answer

Hello,

Throttles are a good indication of an overloaded router. They show the number of times the receiver on the port has been disabled, possibly due to buffer or processor overload. Together with high CPU utilization on an interrupt level, throttles indicate that the router is overloaded with traffic.

Thanks

Marco

anhq · Answer

that is due to overloaded with traffic. So is it because the packets through which the device suddenly increased. I want to ask in relation to MTU. My topology : server--- S4048 ---- Sw . Configuration on S4048 below: server with S4048 is port-channel protocol, do you think I have a wrong configuration between server and s4048?

interface TenGigabitEthernet 1/1
no ip address
flowcontrol rx on tx off
!
port-channel-protocol LACP
port-channel 1 mode active
no shutdown
!

interface TenGigabitEthernet 2/1
no ip address
flowcontrol rx on tx off
!
port-channel-protocol LACP
port-channel 1 mode active
no shutdown
!

interface Port-channel 1
description
no ip address
mtu 9216
switchport
spanning-tree rstp edge-port
no shutdown
!

thanks

DELL-Marco B · Answer

Hello,

I think that this configuration is ok, anyway you need to do some test to determine what is the correct MTU value if you have som eissue on throttles.

Did you check also which is the MTU value on the host side?

Thanks Marco

Networking General

S4048-on, link issue

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