7
votes
Accepted
Is possible to stack/uplink different brands of switches using SFP?
Yes you can uplink different brand of switches using SFP.
The term stacking in this context means that several switches act as a single one. This is always a proprietary (and model dependent) feature,...
- 19.5k
6
votes
Accepted
SNMP object not in the MIB
is it possible to add support for an OID that is not there by default?
Unfortunately, adding support for these OIDs would require each of your vendors (Brocade and Dell) to implement them in their ...
- 9,421
5
votes
Accepted
Correct ACL rules to isolate WiFi traffic from other VLANs?
Since you want to permit WAN traffic, matching only any, you need to have a permit any any at the end.
Basically, you want to deny traffic in and out of the Wi-Fi VLAN. For each of the other VLANs you ...
- 82.7k
4
votes
Accepted
Dell N3000 - Use port security for certain ports while Dot1x is globally enabled
You can try to disable dot1x port-control on a specific interface under interface configuration mode using no form command of no dot1x port-control ...
- 3,754
4
votes
Unique MAC address in L3 switch
Honestly, it's unthinkable for an Ethernet port not to have an individual MAC address. For a lot of reasons... LAN communication, port-channel, etc. But let's doubt it, in the world of machines ...
- 86
4
votes
How do I set up a Link Aggregation for 2 ports between a Sonicwall TZ500 and a Dell XP1018P
You can't do it on Sonicwall device. TZ series doesn't support link aggregation. Check this doc http://documents.software.dell.com/sonicos/6.2.3.1/release-notes/document-download?ParentProduct=847
- 1,152
4
votes
Accepted
LACP to Fix Switch Bottleneck?
The setup is totally valid, provided all devices support LACP LAG.
Two things though:
The network design is not very good, neither for reliability nor from the performance/efficiency perspective. ...
- 82.7k
4
votes
Accepted
Can a QSFP28 port break out to 4 SFP+ ports to separate hosts?
On most devices, that is possible. Check the manual for splitting a QSFP28 port into four SFP28 or SFP+ interfaces.
The datasheet specifically shows 28 10GbT and 8 SFP+ for 10G and lists a 40GbE, ...
- 82.7k
3
votes
Accepted
25G SFP28 NIC and 25G SFP Adapter
Forgot to add an answer..
In the Dell BIOS, they had set the default link speed on the port to be 10G non-negotiable. Once that was changed, I had to set the Link FEC to the same standard on both the ...
- 140
3
votes
Accepted
RADIUS accounting Stop messages not being sent
The answer was to use dot1x port-control mac-based on each port that you want authenticated.
- 171
3
votes
Accepted
Is temperature sensor on zero enough to prove PoE Control Module is failed?
(converted from comments)
The "Total Power" figure should show what the PSU can deliver, regardless of what's currently in use. The "0 W" pretty clearly shows there's something wrong.
Possibly, the ...
- 82.7k
3
votes
Accepted
Allowing only routed traffic, block intra-VLAN forwarding
Since your clients are connected by the edge switches you'll need to filter unwanted traffic there - before the core switches.
How exactly that can be done depends on the models/series you use.
With ...
- 82.7k
3
votes
how can I find out deployment date?
Usually you'd have that date in your inventory.
For HPE/Aruba gear you can use the warranty check (requires registration as of late): https://support.hpe.com/connect/s/?card=wc.
Cisco: https://...
- 82.7k
3
votes
snmpwalk returns hex-string for interfaces without a description
(Legally obligatory notice - I work for Dell)
As @Ricky pointed out, it returns what it returns. Hex 00 is typically the null terminator for strings so I'm guessing there's some traditional C-family ...
- 201
3
votes
Accepted
Is non-blocking per-VLAN (rapid) spanning tree configuration possible?
Short answer: no.
RSTP is entirely VLAN agnostic, so there's no way to make both trunks forwarding, regardless of which VLANs they use.
You need either RPVST+ or MSTP on both switches, then you can ...
- 82.7k
2
votes
Passing Vlans between HP Procurve and Dell Powerconnect switches
Mode general and trunk are both used for VLAN trunking
mode general
You may choose multiple tagged and untagged vlans, default is tagged
mode trunk
You may define one native vlan, all others are ...
- 767
2
votes
Accepted
Setting up a new Meraki MS220-48FP Switch to replace a pre-existing DellForce10 Switch
As far as the VLAN for access port 1, that looks like what you need.
Depending on how you have STP configured on the network, you should think about using RSTP. Also, STP guard on the access ports ...
- 98.8k
2
votes
Accepted
DHCP option 43 on switch Dell PowerConnect 5500
You will have difficulties towards configuring dhcp on the dell 5524 which is a layer 2 switch. A good switch in my experience, but it isn't a layer 3 switch.
You should use a layer 3 switch that ...
- 1,026
2
votes
Reason to disable spanning-tree?
I wouldn't disable STP in your topology. There's no need to. STP is used to ensure a loop free topology. If they haven't been already, you should bundle your Dell ports into a single port channel. As ...
- 2,337
2
votes
Accepted
Bandwidth hogging on managed switched network 17 users
QoS mechanisms only come into effect when there is congestion on the link. If you have a 20M circuit but connected to a 1G interface, your device will never recognize the congestion because the ...
- 969
2
votes
Accepted
Switch Temperature - How hot it too hot!
It depends on your device, if temperature is high, fans will spin faster and you reduce timelife of your switch.
I think 63°C is slightly high but I have switches working at this temperature (or ...
- 1,152
2
votes
Accepted
How does a router monitor traffic between two devices on a switch
As per this page:
The SonicWALL Packet Monitor feature allows you to capture and examine
network traffic as it crosses your firewall. When activated,
Packet Monitor logs the details of packets ...
- 2,337
2
votes
Force10 S4820T Fiber GBIC is not working
I understand you are using a 40G port with a breakout cable (4x10G). In this case, you need to split the 40G port in 4x10G ports.
From the manual:
Split a single 40G port into four 10G ports.
...
- 1,152
2
votes
Accepted
Multiple LAN interfaces on SonicWALL
This is not possible using the Firewall model specified in the question.
The final solution was to get more space to add a switch behind the firewall.
- 221
2
votes
Accepted
Force10 MXL switch port mapping
You are correct (if the blade has dual port network cards)
Blade1_NIC0 -> A1_Te0/1
Blade1_NIC1 -> A2_Te0/1
Blade2_NIC0 -> A1_Te0/2
Blade2_NIC1 -> A2_Te0/2 ....
Blade16_NIC0 -> A1_Te0/16
...
- 1,152
2
votes
Firewall has only one port. How can I properly NAT to ISP on a Layer-3 switch?
One way is to create two logical interfaces (trusted and untrusted) on your firewall, using 802.1q trunking. You will configure your switch port to be a trunk with two VLANs. Logically, your Linux ...
- 67.1k
2
votes
Accepted
Firewall has only one port. How can I properly NAT to ISP on a Layer-3 switch?
Bridging your LAN and the WAN link is a terrible idea to start with...
You don't need a 2nd physical interface on your firewall but you do need a 2nd logical interface.
On the switch, configure a ...
- 82.7k
2
votes
1-1 NAT on a SonicWall with a DMZ
In this situation, you should put your PBX device in DMZ zone, assign a private IP address for it, then create an Inbound access rule and an Inbound One-to-One NAT policy for public/Internet traffic ...
- 3,754
2
votes
Accepted
Permit IP Directed Broadcast on DELL FTOS
By default, directed broadcasts are filtered on ingress for all interfaces. You need to enable directed-broadcast forwarding on the incoming interface.
In the interface config context you need to
...
- 82.7k
Only top scored, non community-wiki answers of a minimum length are eligible