Cisco SG300 - IGMP and multiple switches

Hi all,
I have read through various Cisco documents and tried various configurations and i have been unsuccessful
Here is the network layout
Cisco SG300-10 in Layer 3 mode, managing all VLANS created and inter-vlan traffic is working fine
Ports 1-4 are in LAG 1 with LACP enabled, Ports 5-8 are in LAG 2 again with LACP enabled, port 9 is connected to the ASA 5505 (Trunk port, all VLANS) and port 10, again a trunk port I use for management
LAG 1 and 2 are connected to Cisco SG300-52 switches
again traffic between the switches is working ok, what we would like to do is the following
on VLAN 7, we have multiple devices streaming using UDP multicast, what we would like to do is allow PC's on VLAN 5 to be able to pick up these streams as and when they need to, the devices broadcast on their own unique UDP ranges
Could someone please explain to me what I need to configure on the Layer 3 switch and the other two Layer 2 switches in order for this to work?
If i put a port into VLAN 7 and can view the stream without a problem, also if there is any fine tuning to be done once this is working
Thanks
Andy

Jason,
The only advantage you would get from using SFPs (fiber tranceivers) in the GBIC slots would be if you needed to make a run of over 100m between the switches. Unless you have a very large property with switches at either end you are just as well to use the copper ports in the setup you described. There is also nothing wrong with chaining the SG100s together if necessary to free up a port on the RV320. The only other thing to consider is if you are using VLANs. Each unmanaged SG100 will only pass a single VLAN so if you need segregated distribution coming from the RV320 you would need to put each SG100 on its own port. Or, you could run a trunk from a port on the RV320 to your SG200 and then split off your untagged VLANs from there. Hope this answers your question and have a nice day.
Regards,
Mike.V

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Jason,
The only advantage you would get from using SFPs (fiber tranceivers) in the GBIC slots would be if you needed to make a run of over 100m between the switches. Unless you have a very large property with switches at either end you are just as well to use the copper ports in the setup you described. There is also nothing wrong with chaining the SG100s together if necessary to free up a port on the RV320. The only other thing to consider is if you are using VLANs. Each unmanaged SG100 will only pass a single VLAN so if you need segregated distribution coming from the RV320 you would need to put each SG100 on its own port. Or, you could run a trunk from a port on the RV320 to your SG200 and then split off your untagged VLANs from there. Hope this answers your question and have a nice day.
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Cisco SG300 Network Expansion (Configure 2 Switches)

I’m currently in the process of expanding my network having bought a second Cisco SG300-20 which is now sitting in my lab, my current setup is described below
Internet
^
|
Draytek Router 192.168.1.1
^
|
Cisco SG300-20 192.168.1.2
^
|
VLAN 12 Workstations interface 10.0.12.1
VLAN 13 Management interface 10.0.13.1
VLAN 14 Pubic interface 10.0.14.1
VLAN 15 Private interface 10.0.15.1
VLAN 20 Storage interface 10.0.20.1
I then have a number of servers with multiple nics that run on the various VLANS attached to certain ports in the Cisco Switch
VLAN 12 and 14 have been given access to the internet with routes added to Draytek to 10.0.12.1 / 10.0.14.1
Now what I want to do is to expand the network running a link from my first switch to the new switch. Ive read a number of notes on this forum but confused as to what I need to do.
I want the new switch to have access to all the VLANS configured on the first switch and will set the ports access to the various VLANs for each server that is being connected.
Have read that its best to have any additional switches on the network configured as Layer 2 and leave just one switch to do the routing (is that correct?). So have left the new switch as Layer 2 and given it an IP of 192.168.1.3
So the first question is how do I configure the uplink port from switch 1 (Port Gi2) to Switch 2 (Port Gi1).
Should I run multiple cables and create a LAG between the two switches? Allowing for additional bandwidth (I stream a lot of HD movies across the network to the workstations)
I have attached my running config from switch 1 below.
Any help would be appreciated, unfortunately networks are not my strong point.
prcswitch01#show running-config
config-file-header
prcswitch01
v1.3.5.58 / R750_NIK_1_35_647_358
CLI v1.0
set system mode router
file SSD indicator encrypted
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end XXXXXX
vlan database
vlan 12-15,20
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
ip dhcp server
ip dhcp pool network Workstations
address low 10.0.12.20 high 10.0.12.100 255.255.255.0
lease infinite
default-router 10.0.12.1
dns-server 10.0.15.200 8.8.8.8
exit
bonjour interface range vlan 1
hostname prcswitch01
username cisco password encrypted XXXXXXX privilege 15
ip ssh server
interface vlan 1
ip address 192.168.1.2 255.255.255.0
no ip address dhcp
interface vlan 12
name Workstations
ip address 10.0.12.1 255.255.255.0
interface vlan 13
name Management
ip address 10.0.13.1 255.255.255.0
interface vlan 14
name Public
ip address 10.0.14.1 255.255.255.0
interface vlan 15
name Private
ip address 10.0.15.1 255.255.255.0
interface vlan 20
name Storage
ip address 10.0.20.1 255.255.255.0
interface gigabitethernet3
switchport mode access
switchport access vlan 12
interface gigabitethernet4
switchport mode access
switchport access vlan 12
interface gigabitethernet5
switchport mode access
switchport access vlan 20
interface gigabitethernet6
switchport mode access
switchport access vlan 20
interface gigabitethernet7
switchport trunk allowed vlan add 13-15
interface gigabitethernet8
switchport trunk allowed vlan add 13,20
switchport trunk native vlan 12
interface gigabitethernet9
switchport trunk allowed vlan add 13-15
interface gigabitethernet10
switchport trunk allowed vlan add 13,20
switchport trunk native vlan 12
interface gigabitethernet11
switchport trunk allowed vlan add 13-15
interface gigabitethernet12
switchport trunk allowed vlan add 13,20
switchport trunk native vlan 12
interface gigabitethernet13
switchport mode access
switchport access vlan 12
interface gigabitethernet14
switchport mode access
switchport access vlan 12
interface gigabitethernet15
switchport mode access
switchport access vlan 12
interface gigabitethernet16
switchport mode access
switchport access vlan 12
interface gigabitethernet17
switchport mode access
switchport access vlan 12
interface gigabitethernet18
switchport mode access
switchport access vlan 12
interface gigabitethernet19
switchport mode access
switchport access vlan 12
interface gigabitethernet20
switchport mode access
switchport access vlan 12
exit
ip default-gateway 192.168.1.1
prcswitch01#

Hi Aleksandra,
Im still having issues with my setup. The servers I have connected have VLAN tagging enabled
Previously I had my esxi server connected via two nics with ports configured on my Layer 3 switch prcswitch01 as follows
Port 1 Trunk VLAN 13-15
Port 2 Trunk VLAN 13,20
My NAS was configured on a single port on VLAN20
The ESXI server can only have a single gateway which is used by both interfaces
~ # esxcli network ip route ipv4 list
Network Netmask Gateway Interface Source
default 0.0.0.0 10.0.13.1 vmk0 MANUAL
10.0.13.0 255.255.255.0 0.0.0.0 vmk0 MANUAL
10.0.20.0 255.255.255.0 0.0.0.0 vmk1 MANUAL
Traffic was being passed from VLAN13 to VLAN20 to allow connectivity to the NAS on the ESXi server
This no longer seems to be happening on my Layer 2 switch.
I have configured the ports the same as previously setup on the Layer 3 switch.
When I have the esxi server connected I can reach the server on 10.0.13.11 but the server cannot ping the NAS on 10.0.20.196
Hope that makes sense, I’m confused about setting this new switch up. Should I configure it as Layer 3 and setup interfaces for the various VLANS. I was under the impression this would be done by my first switch.
Thanks
Paul

Multicast filter on SG300-10 and IGMP Querier

Hi
We're currently testing the Cisco SG300-10 for use with multicast TV services/channels but we're having trouble configuring the switch. Our setup is that we have a TV provider which is multicasting all their TV services into the switch's port 3. The multicast packets of a TV-channel should only be forwarded to another port in the switch if a client sends a IGMP join (report) message to start receiving a service.
First we've tried to disable multicast broadcasting by enabling Bridge Multicast Filtering Status (manual chap 15, "Defining Multicast Properties") but multicast packets are still broadcast on all ports. How do we filter multicast packets so they're not broadcast on all ports?
Also we need the SG300-10 switch to run as IGMP Querier so clients report membership at a regular basis. We've tried enabling IGMP Querier (manual chap. 15 "Configuring IGMP snooping") but it always remain disabled and we never see any IGMP Query messages (we use Wireshark to check this). How do we enable IGMP Querier?
When I press Apply the "IGMP Querier Status" remain "Disabled" in the "IGMP Snooping" page. Also the IP-address I specify is never transferred to the "IGMP Snooping" page.
Here's the switch's configuration:
switch291c88#sh run
config-file-header
switch291c88
v1.2.7.76 / R750_NIK_1_2_584_002
CLI v1.0
file SSD indicator encrypted
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
bridge multicast filtering
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
ip igmp snooping vlan 1 querier
ip igmp snooping vlan 1 querier address 192.168.1.254
hostname switch291c88
username cisco password encrypted 33c887d388ad6255811e904795174e5bd8444d32 privilege 15
switch291c88#sh interface count
      Port       InUcastPkts InMcastPkts InBcastPkts    InOctets
      gi1            1859          40           31         346191
      gi2             0            0            0            0
      gi3             0         2636117         0        616850868
      gi4             0            0            0            0
      gi5             0            0            0            0
      gi6             0            0            0            0
      gi7             0            0            0            0
      gi8             0            0            0            0
      gi9             0            0            0            0
      gi10            0            0            0            0
      Port       OutUcastPkts OutMcastPkts OutBcastPkts OutOctets
      gi1            2896       2627863        122       617075328
      gi2             0            0            0            0
      gi3             0           778          150         148040
      gi4             0            0            0            0
      gi5             0            0            0            0
      gi6             0         2628132        153       614950172
      gi7             0            0            0            0
      gi8             0            0            0            0
      gi9             0            0            0            0
      gi10            0            0            0            0
       Ch        InUcastPkts InMcastPkts InBcastPkts    InOctets
      Po1             0            0            0            0
      Po2             0            0            0            0
      Po3             0            0            0            0
      Po4             0            0            0            0
      Po5             0            0            0            0
      Po6             0            0            0            0
      Po7             0            0            0            0
      Po8             0            0            0            0
       Ch        OutUcastPkts OutMcastPkts OutBcastPkts OutOctets
      Po1             0            0            0            0
      Po2             0            0            0            0
      Po3             0            0            0            0
      Po4             0            0            0            0
      Po5             0            0            0            0
      Po6             0            0            0            0
      Po7             0            0            0            0
      Po8             0            0            0            0

Hm, solved multicast by filtering "Unregistered Multicast" and IGMP Querier by enabling IGMP snooping.

SG300-28P Multicast (IGMP) and IGMP routing..

A brief background on the setup:
I recently switched out my switch. It was a Cisco 3750 10/100 switch and I wanted to upgrade to Gig. The cost of a Gig+POE 3750 is too much to bite so I opted for the SG300. My router is a Cisco 891. Here is the setup:
Cisco 891:
two SVI's: vlan1 and vlan 100
Vlan1 = 10.0.1.1/24
Vlan100 = 10.0.100.2/24
Connected to SG300 via Fa0
DHCP Server for vlan1+vlan100
Cisco SG300-28P:
two SVI's: vlan 1 and vlan 100
vlan 1 = 10.0.1.21/24
vlan 100 = 10.0.100.1/24
Connected to 891 on via Gi18
The connection between 891 and SG300 = trunk, vlan1-u, vlan100-t
The problem:
With the 891+3750, I was able to add "ip pim sparse-dense-mode" on all the SVI's and hosts could join any multicast group, irregardless of which vlan the host was a member of.
Now I've changed switches, and I dont get the same love. I have the PIM statement on both SVI's on the 891, but Im unsure of what I need to configure on the SG300. I have enabled "Bridge multicast filtering" + "IGMP snooping". What can I do to get similar functionality using the SG300 + 891? I assume this is my lack of understanding IGMP in general, but was able to get away with it using the PIM statements on the 891+3750 stack.
Jeff

You should be able to filter unregisted multicast on every port.
To be able to pass multicast over subnets two things must be certain, the node/device is able to send and receive multicast packets but also register the multicast address being listened to by the node so the local and remote routers can route the multicast packets.
When the switch learns a multicast address through IGMP snooping, this is a registered multicast. The switch will only forward multicast to ports that are registered to the multicast group. Where unregistered multicast comes in, is the multicast that is not statically defined or learned through IGMP which in turn will be forwarded to all ports of the vlan.

Communication problem between Cisco 3560 and Cisco SG300.

Dear Support,
I have a Cisco SG300 and Cisco 3560 switches.
3560 is my Core Switch and SG300 is access switch.
From 3560 VLAN information is not passed to SG300.
3560 Configuration:
interface GigabitEthernet0/23
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,2,10,11
switchport mode trunk
SG300 Configuration:
interface gigabitethernet49
spanning-tree link-type point-to-point
switchport mode general
switchport general allowed vlan add 2,10-11 tagged
macro description switch
Please suggest how this issue is resolve.
Regards,
JItesh Mahajan.

Dear Aleksandra,
Below Configuration is right or wrong for 3560 and SG300.
3560 Configuration:
interface GigabitEthernet0/23
switchport trunk encapsulation dot1q
switchport trunk allowed vlan remove VLAN 1
switchport native vlan 1
switchport trunk allowed vlan 1,2,10,11
switchport mode trunk
SG300 Configuration:
interface gigabitethernet49
spanning-tree link-type point-to-point
switchport mode general
switchport general allowed vlan add 2,10-11 tagged
macro description switch
Regards,
JItesh Mahajan.

Cisco SG300 and LLDP with Yealink Phones.

I am currently trying to setup a Cisco SG300 switch with a hosted VoIP solution using the SG300's at the customer's premise. The Yealink phones I am not able to get them to pull an IP address and believe the problem is related to LLDP. We also use Polycom phones and they work just fine. Here is the configuration that I am currently using ( I have tried several different configurations and none of them work with the Yealinks. Any help would be greatly appreciated.
DLC#show run
config-file-header
DLC
v1.3.0.62 / R750_NIK_1_3_647_260
CLI v1.0
set system mode switch
file SSD indicator encrypted
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
vlan database
vlan 2,88
exit
voice vlan id 88
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
hostname DLC
interface vlan 2
name Data
interface vlan 88
name FlexVoice
interface gigabitethernet1
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet2
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet3
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet4
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet5
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet6
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet7
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet8
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet9
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet10
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet11
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet12
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet13
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet14
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet15
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet16
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet17
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet18
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet19
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet20
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet21
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet22
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet23
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet24
switchport trunk allowed vlan add 88
switchport trunk native vlan 2
no macro auto smartport
interface gigabitethernet27
switchport mode access
switchport access untagged vlan 2
no macro auto smartport
interface gigabitethernet28
switchport mode access
switchport access untagged vlan 88
no macro auto smartport
exit
DLC#

Here is the latest configuration that I tried, Polycom phone worked, Yealink didn't.
co-test#show run
config-file-header
co-test
v1.4.0.88 / R800_NIK_1_4_194_194
CLI v1.0
set system mode switch
file SSD indicator encrypted
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
vlan database
vlan 2,88,881
exit
voice vlan id 88
voice vlan state oui-enabled
voice vlan cos 6 remark
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 0004f2 Polycom
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 001565 Yealink
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
hostname co-test
interface vlan 2
name data
interface vlan 88
name flexvoice
ip address 172.16.88.2 255.255.255.0
no ip address dhcp
interface gigabitethernet1
voice vlan enable
interface gigabitethernet2
voice vlan enable
interface gigabitethernet3
voice vlan enable
interface gigabitethernet4
voice vlan enable
interface gigabitethernet5
voice vlan enable
interface gigabitethernet6
voice vlan enable
interface gigabitethernet7
voice vlan enable
interface gigabitethernet8
voice vlan enable
interface gigabitethernet9
voice vlan enable
interface gigabitethernet10
voice vlan enable
interface gigabitethernet11
voice vlan enable
interface gigabitethernet12
voice vlan enable
interface gigabitethernet13
voice vlan enable
interface gigabitethernet14
voice vlan enable
interface gigabitethernet15
voice vlan enable
interface gigabitethernet16
voice vlan enable
interface gigabitethernet17
voice vlan enable
interface gigabitethernet18
voice vlan enable
interface gigabitethernet19
voice vlan enable
interface gigabitethernet20
voice vlan enable
interface gigabitethernet21
voice vlan enable
interface gigabitethernet22
voice vlan enable
interface gigabitethernet23
voice vlan enable
interface gigabitethernet24
voice vlan enable
interface gigabitethernet27
switchport mode access
switchport access vlan 2
no macro auto smartport
interface gigabitethernet28
switchport mode access
switchport access vlan 88
no macro auto smartport
exit
co-test#

LAG configuration issue on Cisco SG300 52 Switch

Hi everybody,
I am having an issue with LAG configuration on a Cisco SG300 52 switch. I have connected four Ge ports on the switch to the four NICs of a Dell R710 Server on which I installed Windows Server 2008 R2. Without LAG configured, these ports would forward traffic to and from the Dell server fine. However, if I configure LAG on the ports with LACP enabled, then they would not forward any network traffic. Debugging shows that the ports are up but their forwarding status show N/A. Am I missing any configuration? Can I configure LAG on edgeports? Or is there any compatibility issue?
Any help from you guys will be greatly appreciated.
Thank you.
Vishal

Hi Dave,
Thank you for your quick response and sorry to have looked at it late. Well, I already resolved the issue and like you pointed out, it was the configuration of the Dell NICs. I had to configure NIC teaming and there was a bug with the Broadcom NIC management software. I had to download this piece of software again and I was then able to configure NIC teaming on it. I initially thought that it was already configured because we got the Dell server "pre-installed with pretty much everything".
Anyway thank you for your assistance. Oh I have a question though if you don't mind clearing my doubt. We have bought 7 of these SG300 Switches and I would like to use all of them
in a hierarchical design as core, distribution and access layer switches because I believe this switch has got all the qualities to be used at all the three layers. We have about 100 users in our company at the moment but expecting growth of about 10-20 employees per year. Would you think a hierarchical network design for a 100 users is a bit of an overkill? Would you think these SG300 switches can handle network traffic at the distribution and core layers? I worked out the average daily traffic is only about 4 Mbps.
Thank you for your valuable guidance.
Kind regards,
Vishal
Date: Mon, 12 Sep 2011 08:09:40 -0600
From: [email protected]
To: [email protected]
Subject: - Re: LAG configuration issue on Cisco SG300 52 Switch
Cisco Support Community
Re: LAG configuration issue on Cisco SG300 52 Switch created by David Hornstein in Small Business Switches - View the full discussion
Hi Chundunsing,
Thank you for the purchase of my switch.
Chundunsing, I love the way you worded your question ; "I am having an issue with LAG configuration on a Cisco SG300 52 switch." ,but seriously you are having a problem with interfacing the dell with my switch.
You have LAG working to the Dell R710 teamed NICs and god knows what NICs or drivers you are using to acheive this.
Now LAG is providing , load balancing between the LAG ports.
Now LAG is providing , link redundancy for connectibity to the Dell R710.
If there is a configuration issue , it sure seems the way you have it configured without LACP is still working. But you have the option when you create a LAP group to enable LACP. You can see this as a tick box in the LAG group.
But might i also install, recently firmware version 1.1.1.8, just came out.
Please be sure to;
Step 1. update the firmware on the switch and
Step 2. select it as the 'active image.'
Step 3 rebbot the switch to utilize this active image.
If you are having any trouble doing this the admin guide references how to achieve this. for your concenience I have atteched the guide to this posting.
regards Dave
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Need SNMP OID for MSTP status in Cisco SG300-28MP 28-port Gigabit Max-PoE Managed Switch

Hi,
I have configured redundant network using two Cisco SG300-28MP 28-port Gigabit Max-PoE Managed Switch through MSTP & it's working fine.
I need OID of MSTP status from which I can monitor which Switch is active and which one is in standby mode.
Please help.
Thanks,
Harsha

Hi Harsha,
check these OID's:
http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?objectInput=1.3.6.1.4.1.9.9.500.1.2.1.1.6&translate=Translate&submitValue=SUBMIT
http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?objectInput=cRFStatusUnitState&translate=Translate&submitValue=SUBMIT&submitClicked=true
Thanks-
Afroz
**Ratings Encourages Contributors ***

Need SNMP OID of MSTP status for Cisco SG300-28MP 28-port Gigabit Max-PoE Managed Switch

Hi,
I have configured redundant network using two Cisco SG300-28MP 28-port Gigabit Max-PoE Managed Switch through MSTP & it's working fine.
I need OID of MSTP status from which I can monitor which Switch is active and which one is in standby mode.
Please help.
Thanks,
Harsha

Hi Harsha,
check these OID's:
http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?objectInput=1.3.6.1.4.1.9.9.500.1.2.1.1.6&translate=Translate&submitValue=SUBMIT
http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?objectInput=cRFStatusUnitState&translate=Translate&submitValue=SUBMIT&submitClicked=true
Thanks-
Afroz
**Ratings Encourages Contributors ***

Connectivity issues between Cisco 2901 and Cisco SG300-52

Hello,
I am having some serious connectivity issues between the hosts in my LAN.
My LAN is based on a Cisco 2901 router and a Cisco SG300-52 port switch.
The issue that has been happening is that connections between hosts on the LAN (remote desktop, extended ping, etc) is very unstable, at some point I can see a 35% lost packets on an extended ping. This happens at any time of the day and from any host.
All hosts are on the same Vlan(default Vlan) and on the same subnet. Some hosts have fixed IP addresses (servers and network equipment) and others obtain their IP address trough a DHCP reservation established on the router (reserved with the MAC address of every host).
I can provide further details if needed, because this issue is very serious and I would really appreciate any insight or support.
Many thanks in advanced.
Sair Amer
EDIT: After doing every test we could think of, we finally found the reason behind this problem.
It turns out that the switch has problems handling communications between clients at different speeds, because most of the hosts connected were working at 100 Mbps but the servers were working at 1000 Mbps (and the communication between host and servers wasn't stable).
After manually setting the speed on all ports to 100 Mbps the problems have stopped.
Many thanks for you help on this issue.

Building configuration...
Current configuration : 4123 bytes
! Last configuration change at 12:06:16 PCTime Sat Jul 19 2014 by ccp
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname Foninsa
boot-start-marker
boot-end-marker
no logging buffered
enable secret 5 $1$BDbJ$HN3VP8nmywrGB55RCxPd30
aaa new-model
aaa authentication login default local
aaa authorization exec default local
aaa session-id common
clock timezone PCTime -4 0
clock summer-time PCTime date Apr 6 2003 2:00 Oct 12 2003 12:00
no ip cef
ip dhcp excluded-address 192.168.1.1 192.168.1.10
ip dhcp excluded-address 192.168.1.151 192.168.1.255
ip dhcp pool FONINSA
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 8.8.8.8 8.8.4.4
ip dhcp pool Laptop-Sporta-Wifi
host 192.168.1.10 255.255.255.0
ip name-server 8.8.8.8
ip name-server 8.8.4.4
no ipv6 cef
multilink bundle-name authenticated
crypto pki trustpoint TP-self-signed-213585710
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-213585710
revocation-check none
rsakeypair TP-self-signed-213585710
crypto pki certificate chain TP-self-signed-213585710
certificate self-signed 01
30820229 30820192
quit
license udi pid CISCO2901/K9 sn
license boot module c2900 technology-package securityk9
username ccp privilege 15 password
redundancy
interface Embedded-Service-Engine0/0
no ip address
shutdown
interface GigabitEthernet0/0
ip address 190.196.21.98 255.255.255.248
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
interface GigabitEthernet0/1
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
no ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
ip nat inside source list 1 interface GigabitEthernet0/0 overload
ip nat inside source static tcp 192.168.1.3 21 190.196.21.98 21 extendable
ip nat inside source static tcp 192.168.1.3 80 190.196.21.98 80 extendable
ip nat inside source static udp 192.168.1.8 1194 190.196.21.98 1194 extendable
ip nat inside source static tcp 192.168.1.4 3389 190.196.21.98 3389 extendable
ip nat inside source static tcp 192.168.1.9 3389 190.196.21.98 10000 extendable
ip nat inside source static tcp 192.168.1.3 3389 190.196.21.98 20000 extendable
ip route 0.0.0.0 0.0.0.0 190.196.21.97
access-list 1 permit 192.168.1.0 0.0.0.255
control-plane
line con 0
password $
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
stopbits 1
line vty 0 5
access-class 23 in
privilege level 15
password #
transport input telnet ssh
no scheduler allocate
end

The difference of the IEEE802.1x Auth between Cisco Routers and Catalyst switches

Hello
I am investigating the difference of the IEEE802.1x Auth between Routers and Switches.
Basically dot1x auth is availlable on Catalyst Switches. however if I want to check to
PortBased Multi-Auth , MAC address Auth and any certification Auth with this feature,
Is it possible to integrate into Cisco Router such as Cisco 891F ?
In my opinion Cisco891F is also available to use basic IEEE802.1x but if it compares with Catalyst switches such as Cat3560X
I think there might be any unsupported feature on Cisco 891F.
I appreciate any information. thank you very much in advance.
Best Regards,
Masanobu Hiyoshi

Many time in interviews asked comaprison between cisco routers and switches that i was answerless bcoz i dont have much knowledge about that.Can anyone provide me the compariosin sheet of the same.how are the cisco devices differ with each other how much Bandwidth each routres support and Etc...
Ummmm ... The most common question I get is "what is the difference between a router and a switch".
However, if you get a question like this, then my impression to this line of questioning are:
1. The candidate they are looking for has in-depth knowledge of routers and switches. And I mean IN-DEPTH!;
2. They are not looking for a candidate. They just want to stroke their ego. There is not alot of people who can give you the "names and numbers" of routers and switches at a snap of a finger. And if you do happen to know the answer, then and there, then expect a tougher follow-up question.

Cisco SG300 - IGMP and multiple switches

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