问题描述：
百兆更换千兆交换机后大文件传输丢包，导致大文件无法上传共享库。
组网及组网描述：
- 2020-10-09提问
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最佳答案
在交换机做几层转发，一般交换机查表转的，查表硬转的话，交换机没有MTU的概念，此时受最大帧长度控制。低于最大帧长度，转发；帧长度高于最大帧长度，丢弃。是否有做过流统看丢包丢在什么位置，先确认丢包位置吧，看是否丢包设备配置了包过滤等策略过滤掉了。
- 2020-10-09回答
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二层配置
19口为设备所在口
[C_1F_3]dis current-configuration
#
version 7.1.070, Release 6126P20
#
sysname C_1F_3
#
clock timezone beijing add 08:00:00
#
telnet server enable
#
irf mac-address persistent timer
irf auto-update enable
undo irf link-delay
irf member 1 priority 1
#
dot1x timer quiet-period 30
dot1x timer handshake-period 20
dot1x timer reauth-period 7200
dot1x timer server-timeout 200
dot1x timer supp-timeout 20
dot1x timer tx-period 20
#
lldp global enable
#
password-recovery enable
#
vlan 1
#
vlan 8
#
vlan 10
#
vlan 17
#
vlan 20
#
stp global enable
#
interface NULL0
#
interface Vlan-interface1
ip address 172.31.1.41 255.255.255.0
#
interface GigabitEthernet1/0/1
description ESXI
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/2
description OA
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/3
description CRM
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/4
description RMD
port access vlan 17
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/5
description TS-IMB
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/6
description TS-DELL
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/7
description Inspur
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/8
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/9
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/10
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/11
port access vlan 8
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/12
port access vlan 8
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/13
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/14
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/15
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/16
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/17
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/18
description CSG-Cloud
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/19
description ??Э?
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
flow-control
#
interface GigabitEthernet1/0/20
description AC
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/21
description ?????
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/22
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/23
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/24
port access vlan 10
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/25
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/26
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/27
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
interface GigabitEthernet1/0/28
description ?θ?
port link-type trunk
port trunk permit vlan 1 7 to 8 10 17 20
storm-constrain broadcast ratio 10 10
storm-constrain multicast ratio 10 10
storm-constrain unicast ratio 10 10
storm-constrain control block
#
scheduler logfile size 16
#
line class aux
user-role network-admin
#
line class vty
user-role network-operator
#
line aux 0
authentication-mode password
user-role level-2
user-role network-admin
set authentication password hash $h$6$/YnPIZIwKE1Cwgsb$njQFIx7Pvn21UIMC32afS/FslngM6P7/oFsdudkvclqQTIYMNCGRgnpZ9wkbcdEPgp41Ac+jTF/GV+2myZdCUg==
#
line vty 0 3
authentication-mode scheme
user-role network-operator
#
line vty 4
authentication-mode scheme
user-role level-15
user-role network-operator
#
line vty 5 15
authentication-mode scheme
user-role network-operator
#
line vty 16 63
user-role network-operator
#
ip route-static 0.0.0.0 0 172.31.1.14
#
ntp-service unicast-server 172.16.0.250
#
super password role network-admin hash $h$6$mh/VImZbSDHQTmvx$cXhBwdDMYb57TdD6b9v8lsfvKK/iHlkxiTVQCynbt+MzStY9rj4+DW8B19P/R89YuyUNf+4lLHZpuWdi3hWlvQ==
#
radius scheme system
user-name-format without-domain
#
domain system
#
domain default enable system
#
role name level-0
description Predefined level-0 role
#
role name level-1
description Predefined level-1 role
#
role name level-2
description Predefined level-2 role
#
role name level-3
description Predefined level-3 role
#
role name level-4
description Predefined level-4 role
#
role name level-5
description Predefined level-5 role
#
role name level-6
description Predefined level-6 role
#
role name level-7
description Predefined level-7 role
#
role name level-8
description Predefined level-8 role
#
role name level-9
description Predefined level-9 role
#
role name level-10
description Predefined level-10 role
#
role name level-11
description Predefined level-11 role
#
role name level-12
description Predefined level-12 role
#
role name level-13
description Predefined level-13 role
#
role name level-14
description Predefined level-14 role
#
user-group system
#
local-user admin class manage
password hash $h$6$ifuU/LwQLC5C/zGL$qEv3Y47M0OI3xtukJ58zfwZT5IVVBME/Id7wLf33LhvVM2yfCdT/5QyQkCVJR52OTkIFBBrDlIyBAXUXTMoRqQ==
service-type telnet http https terminal
authorization-attribute idle-cut 60
authorization-attribute user-role level-15
authorization-attribute user-role network-operator
#
ip http enable
ip https enable
#
return
- 2020-10-09回答
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