Device swamped on SG300 switch
Hi,
I have a recently purchased 28 port SG300 switch. Everything is working well. Unfortunately there is so much traffic flying around that a 10MB half duplex device is struggling to function as it is overloaded. Removing some of the sources of traffic fixes it.
Fortunately I only need to access that device from one PC on the network. That PC however needs to access everything else on the network.
Is there a simple way to shield the slow device from everything except traffic from the PC ?
The switch is in Level2 mode at the moment.
Everything is on a single subnet.
Hi Chris,
wow interesting synopsis, I'm guessing this traffic may be multicast IP traffic or a very busy broadcast network?.
I think, you are inclinded to putting the switch into layer 3 mode and run layer 3 switching between two vlans, the existing vlan and a VLAN containing the 10MB half duplex device?
Could be a instant way to reduce broadcast and/or multicasts hitting the 10MB half duplex device from the existing network.
regards Dave
Similar Messages
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Can only telnet from other switches to a SG300 switch. Also can't access web interface.
For whatever reason I can telnet from another switch to the SG300 switch but not directly to the switch. I also can't access the web interface or ping the switch. Any help would be appreciated. Here is the running config
config-file-header
WasteWaterSG30010MPP
v1.3.5.58 / R750_NIK_1_35_647_358
CLI v1.0
set system mode switch
file SSD indicator encrypted
ssd-control-start
ssd config
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ssd-control-end xxxxxxxxxxxxxxxxxxxxxxxx
vlan database
default-vlan vlan 2
exit
vlan database
vlan 2,75,200,999
exit
voice vlan id 200
voice vlan oui-table add ________
voice vlan oui-table add _phone_____________
voice vlan oui-table add ___________________
voice vlan oui-table add ______________
voice vlan oui-table add
voice vlan oui-table add ___________
voice vlan oui-table add ___
voice vlan oui-table add ______________
hostname WasteWaterSG30010MPP
line console
exec-timeout 0
exit
line telnet
password 382fda4a4a26e6637edac0eb8b8ba4581087d32d encrypted
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line console
password 382fda4a4a26e6637edac0eb8b8ba4581087d32d encrypted
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username admin password encrypted 382fda4a4a26e6637edac0eb8b8ba4581087d32d privi
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snmp-server location XXXXXXXX
snmp-server community String1 ro view Default
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ip telnet server
interface vlan 2
ip address 172.16.2.23 255.255.255.0
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interface gigabitethernet1
storm-control broadcast enable
storm-control broadcast level 10
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port security max 10
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macro description ip_phone_desktop
!next command is internal.
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interface gigabitethernet2
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switchport access vlan 999
interface gigabitethernet3
spanning-tree portfast
switchport mode access
switchport access vlan 999
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storm-control broadcast level 10
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port security mode max-addresses
port security discard trap 60
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switchport access vlan 999
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macro auto smartport dynamic_type unknown
interface gigabitethernet5
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switchport mode access
switchport access vlan 999
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macro description switch
!next command is internal.
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switchport trunk native vlan 2
macro description switch
!next command is internal.
macro auto smartport dynamic_type switch
exitA member of which VLAN ID is that device from which you trying to reach that switch?
Is that device directly connected to switch WasteWaterSG30010MPP? If yes, to which port?
If you are connecting from different VLAN than VLAN2, are you using routing between VLANs? Where is that routing device connected to?
> I also have another switch that connects to the network through this switch and am able to telnet to it.
that second switch member of same VLAN 2? Or management is part of different VLAN?
..too few information to be able to give you final answer. -
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"ip routing" command on SG300 switch
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I have several different SG300 switches in L3 mode, and they are set up in a multi-vlan environment...
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Question Re IAS/RADIUS 802.1x Authentiction on SG300 Switches
Good Morning All,
We have just aquired one of these new SG300 series switches which gives us the ability to play around with 802.1x authentication.
We have everything configured correctly for any clients which have 802.1x (eg PC's, IP Phones)
Our problem comes to non 802.1x compliant devices, in this case a printer. The documentation says the switch should detect there is no 802.1x client, and pass the authentication as itself, with the username. It does this, but we get a weird error on our ISA server... Its weird, I am puzzled. We have some other vendor switches which perform this without causing the below issue, so am I missing something easy?
Help greatly appreciated.
===
User 0014389c24f0 was denied access.
Fully-Qualified-User-Name = nuffieldhospitals.org.uk/Test OU - IT Infrastructure/MAC Address Testing/0014389c24f0
NAS-IP-Address = 10.101.180.250
NAS-Identifier = <not present>
Called-Station-Identifier = <not present>
Calling-Station-Identifier = 00-14-38-9C-24-F0
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Client-IP-Address = 10.101.180.250
NAS-Port-Type = Ethernet
NAS-Port = 55
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Authentication-Server = <undetermined>
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Authentication-Type = EAP
EAP-Type = <undetermined>
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For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
===
Any help greatly appreciated.
Thanks
AJHi,
Can you do the following:
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Click Edit Profile.
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In Select EAP providers, click Move Up or Move Down to specify the negotiation order of EAP methods. The server starts negotiation with the client according to the order specified in EAP types.
Hope this helps.
Regards,
Anisha
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When trying to updgrade the SharedDcmaIOS to higher version we get the below error message.
SharedDcmaIOS, SharedNetshowIOS, SharedSwimIOS
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License Info:
Bundle Installed/Updated on
LMS2.6 18 Jun 2009
Name Version Size Status Expiration Date
1.CM 4.0 Unlimited Purchased Never
2.DFM 2.0 Unlimited Purchased Never
3.IPM 2.6 Unlimited Purchased Never
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SharedNetshowIOS.RME43.v2-2-1
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Cannot get SG300 switch to send RADIUS messages for 802.1x
I want to eventually configure the SG300 to authenticate wired clients with 802.1x and Microsoft NPS (RADIUS). I am currently testing this setup using a single port (Port 7) on my SG300, a test machine, and an AD based Network Policy Server.
The problem I have is that when I change the Administrative Port Control for Port 7 to Force Authorized, I see this log entry:
Informational %SEC-I-PORTAUTHORIZED: Port gi7 is Authorized
And then when I change the port control to Auto the port immediately changes to Unauthorized and I see this log entry:
Warning %SEC-W-PORTUNAUTHORIZED: Port gi7 is unAuthorized
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Switch - 10.1.1.3
RADIUS (Microsoft NPS)- 10.1.1.15
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VLAN Mode is General
Host Authentication is Single Host Authentication
Administrative Port Control is Auto
RADIUS VLAN Assignment is Disabled
Guest VLAN is Enabled
802.1x Based Authentication is Enabled
Additional Configurations under Security - 802.1x/MAC/Web Authentication:
Port Based Authentication is Enabled
Authentication Method is RADIUS
Guest VLAN is Enabled
Guest VLAN ID is 2
All of my VLANs are enabled for Authentication
I've got to be missing something but I do not know what that something is.
One last note:
The SG300 uses the same RADIUS server for management console access and it works without problem. When I log into the switch, WireShark shows the RADIUS messages from the switch to the RADIUS server and back. So I know RADIUS is configured correctly on the switch.Hi,
This is my working configuration where port gi3 has DVA configured as well. You might skip port gi3 but please compare to your config:
interface gi3
dot1x host-mode multi-sessions
exit
vlan database
vlan 30,100
exit
interface vlan 100
dot1x guest-vlan
exit
dot1x system-auth-control
interface range gi1,gi3
dot1x reauthentication
exit
interface range gi1,gi3
dot1x mac-authentication mac-only
exit
interface gi3
dot1x radius-attributes vlan
exit
interface range gi1,gi3
dot1x guest-vlan enable
exit
interface gigabitethernet1
dot1x port-control auto
exit
interface gigabitethernet3
dot1x port-control auto
exit
radius-server host 192.168.1.122 priority 1
radius-server key testing123
aaa authentication dot1x default radius
switch3ba5e1#
Regards,
Aleksandra -
Deny device by IP on switch port.
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I have thought about 802.1x but then all the devices must run a suplicant/client in order to connect and some devices are not capable of doing this.
the ideal solution would be the ability to detect the fraudulant gateway address on the edge port and disable the port.How about something like this?:
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Switch(config-std-nacl)#deny 172.25.0.0 0.0.255.255
Switch(config-std-nacl)#permit any
Switch(config)#int range fa0/1 - 24
Switch(config-if-range)#ip access-group 50 in
sh run... (example)
interface FastEthernet0/20
switchport access vlan 6
ip access-group 50 in
spanning-tree portfast
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Device Package for 3750X Switches
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4500x losing connectivity to SG300 switches issue
I have a new Catalyst 4500X-16 SFP+ Switch with ten GLC-SX-MMD SFP modules connected to ten Cisco SG300-10 switches with MGBSX1 SFP modules. The 4500X is all default config except all I did was setup SSH so I can manage remotely. I have GB connectivity between small SG300-10 switches and 4500X switch without any problems at all, until the SG300 reboots. If power goes out or SG300 is restarted for any reason, it does not communicate with the 4500X switch any longer. If I restart the 4500X, then connectivity is restored. I don't see any port security setup or no ports are down...everything appears up, but I can't communicate until I restart the 4500X switch.
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4500X is running IOS-XE Version 3.05.00.E
Thanks in advance for any help you can provide.
Below is info on the 4500 switch...
Joist4500>show int status
Port Name Status Vlan Duplex Speed Type
Te1/1 connected 1 full a-1000 1000BaseSX
Te1/2 connected 1 full a-1000 1000BaseSX
Te1/3 connected 1 full a-1000 1000BaseSX
Te1/4 connected 1 full a-1000 1000BaseSX
Te1/5 notconnect 1 full auto 1000BaseSX
Te1/6 notconnect 1 full auto No XCVR
Te1/7 connected 1 full a-1000 1000BaseSX
Te1/8 notconnect 1 full auto No XCVR
Te1/9 notconnect 1 full auto No XCVR
Te1/10 connected 1 full a-1000 1000BaseSX
Te1/11 connected 1 full a-1000 1000BaseSX
Te1/12 connected 1 full a-1000 1000BaseSX
Te1/13 notconnect 1 full auto No XCVR
Te1/14 connected 1 full a-1000 1000BaseSX
Te1/15 notconnect 1 full auto 1000BaseSX
Te1/16 notconnect 1 full auto No XCVR
Joist4500>
Joist4500>show span
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32768
Address 0025.641d.cfe4
Cost 10
Port 1 (TenGigabitEthernet1/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 58f3.9c8d.b988
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 15 sec
Interface Role Sts Cost Prio.Nbr Type
Te1/1 Root FWD 4 128.1 P2p
Te1/2 Desg FWD 4 128.2 P2p
Te1/3 Desg FWD 4 128.3 P2p
Te1/4 Desg FWD 4 128.4 P2p
Te1/7 Desg FWD 4 128.7 P2p
Te1/10 Desg FWD 4 128.10 P2p
Te1/11 Desg FWD 4 128.11 P2p
Interface Role Sts Cost Prio.Nbr Type
Te1/12 Desg FWD 4 128.12 P2p
Te1/14 Desg FWD 4 128.14 P2p
Joist4500>
Joist4500#show spanning detail
VLAN0001 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, sysid 1, address 58f3.9c8d.b988
Configured hello time 2, max age 20, forward delay 15
Current root has priority 32768, address 0025.641d.cfe4
Root port is 1 (TenGigabitEthernet1/1), cost of root path is 10
Topology change flag not set, detected flag not set
Number of topology changes 10 last change occurred 4d05h ago
from TenGigabitEthernet1/4
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 1 (TenGigabitEthernet1/1) of VLAN0001 is root forwarding
Port path cost 4, Port priority 128, Port Identifier 128.1.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 20bb.c0f2.6800
Designated port id is 128.50, designated path cost 6
Timers: message age 3, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 10, received 185137
Port 2 (TenGigabitEthernet1/2) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.2.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.2, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185136, received 1
Port 3 (TenGigabitEthernet1/3) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.3.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.3, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185134, received 1
Port 4 (TenGigabitEthernet1/4) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.4.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.4, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185125, received 0
Port 7 (TenGigabitEthernet1/7) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.7.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.7, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185133, received 0
Port 10 (TenGigabitEthernet1/10) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.10.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.10, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185130, received 0
Port 11 (TenGigabitEthernet1/11) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.11.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.11, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185129, received 0
Port 12 (TenGigabitEthernet1/12) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.12.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.12, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185129, received 0
Port 14 (TenGigabitEthernet1/14) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.14.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.14, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185127, received 0
login as: dquintanilla
Sent username "dquintanilla"
[email protected]'s password:
Joist4500>show int status
Port Name Status Vlan Duplex Speed Type
Te1/1 connected 1 full a-1000 1000BaseSX
Te1/2 connected 1 full a-1000 1000BaseSX
Te1/3 connected 1 full a-1000 1000BaseSX
Te1/4 connected 1 full a-1000 1000BaseSX
Te1/5 notconnect 1 full auto 1000BaseSX
Te1/6 notconnect 1 full auto No XCVR
Te1/7 connected 1 full a-1000 1000BaseSX
Te1/8 notconnect 1 full auto No XCVR
Te1/9 notconnect 1 full auto No XCVR
Te1/10 connected 1 full a-1000 1000BaseSX
Te1/11 connected 1 full a-1000 1000BaseSX
Te1/12 connected 1 full a-1000 1000BaseSX
Te1/13 notconnect 1 full auto No XCVR
Te1/14 connected 1 full a-1000 1000BaseSX
Te1/15 notconnect 1 full auto 1000BaseSX
Te1/16 notconnect 1 full auto No XCVR
Joist4500>show span
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32768
Address 0025.641d.cfe4
Cost 10
Port 1 (TenGigabitEthernet1/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 58f3.9c8d.b988
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 15 sec
Interface Role Sts Cost Prio.Nbr Type
Te1/1 Root FWD 4 128.1 P2p
Te1/2 Desg FWD 4 128.2 P2p
Te1/3 Desg FWD 4 128.3 P2p
Te1/4 Desg FWD 4 128.4 P2p
Te1/7 Desg FWD 4 128.7 P2p
Te1/10 Desg FWD 4 128.10 P2p
Te1/11 Desg FWD 4 128.11 P2p
Interface Role Sts Cost Prio.Nbr Type
Te1/12 Desg FWD 4 128.12 P2p
Te1/14 Desg FWD 4 128.14 P2p
Below is info on one of the SG300-10 switches.I updated my question with more information in case that helps. Below is spanning summary on the 4500.
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