#8021Q

[technationgr]

TP-LINK TL-SG2428P 24 PORTS POE SMART SWITCH

TL-SG2428PJetStream 28-Port Gigabit Smart Switch with 24-Port PoE+ Standards and ProtocolsIEEE 8023i, IEEE 8023u, IEEE 8023ab, IEEE8023z, IEEE 8023ad, IEEE 8023x, IEEE 8023az, IEEE 8021d, IEEE 8021s, IEEE 8021w, IEEE 8021q, IEEE 8021p, IEEE 8021xInterface 24and#215; 10/100/1000 Mbps RJ45 Ports (Auto Negotiation/Auto MDI/MDIX) 4and#215; Gigabit SFP SlotsPoE+ Ports(RJ45) Standard: 8023at/af…

[morgan-ingland-limited]

👇👇👇 📌Ubiquiti U6-IW Access Point WiFi 6 In-wall

📣Brand: Ubiquiti Networks 📣Sku: U6-IW 📣Condition: NEW 📣Delivery: Next Day

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[polhnitro]

Stalled qbittorrent

#STALLED QBITTORRENT SOFTWARE#

#STALLED QBITTORRENT BLUETOOTH#

(process_one_work) from (worker_thread+0圆0/0x5c4) (get_values_poll ) from (process_one_work+0x250/0x5a0) (rpi_firmware_property) from (get_values_poll+0x4c/0x150 ) (rpi_firmware_property_list) from (rpi_firmware_property+0x70/0x118) (warn_slowpath_fmt) from (rpi_firmware_property_list+0x1f8/0x264) (_warn) from (warn_slowpath_fmt+0xa4/0xd8) (show_stack) from (dump_stack+0xcc/0xf8) (dump_backtrace) from (show_stack+0x20/0x24)

#STALLED QBITTORRENT BLUETOOTH#

Modules linked in: tcp_diag inet_diag nft_counter xt_conntrack xt_tcpudp nft_compat nf_tables nfnetlink iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_filter bluetooth ecdh_generic ecc 8021q garp stp llc rtc_ds1307 regmap_i2c spidev snd_soc_hdmi_codec brcmfmac brcmutil sg sha256_generic cfg80211 vc4 v3d cdc_acm gpu_sched bcm2835_codec(C) bcm2835_v4l2(C) v4l2_mem2mem cec rfkill drm_kms_helper bcm2835_isp(C) bcm2835_mmal_vchiq(C) videobuf2_dma_contig videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common raspberrypi_hwmon snd_soc_core videodev i2c_bcm2835 i2c_brcmstb mc snd_bcm2835(C) snd_compress spi_bcm2835 snd_pcm_dmaengine snd_pcm vc_sm_cma(C) snd_timer snd rpivid_mem syscopyarea sysfillrect sysimgblt fb_sys_fops uio_pdrv_genirq ir_rc6_decoder uio gpio_fan gpio_ir_tx gpio_ir_recv nvmem_rmem i2c_dev nfsd drm drm_panel_orientation_quirks backlight fuse ip_tables x_tables ipv6 WARNING: CPU: 2 PID: 2901 at drivers/firmware/raspberrypi.c:64 rpi_firmware_property_list+0x1f8/0x264 Stopped target Host and Network Name Lookups. Rpi3 login: Under-voltage detected! (0x00050005) Because of this remembering-it and because it's re-creatable, I thought I post it here. Although the under-voltage condition does not cause any other problem, the firmware seems to remember it and fails on the next reboot/poweroff - even hours later (took me some time to recognize the correlation).

#STALLED QBITTORRENT SOFTWARE#

I cannot force an under-voltage condition with for example a software sysbench, but I can force it by (carefully) turning down the voltage on the power supply while the Pi is running, and once an under-voltage condition happened, the next reboot/poweroff fails with the mentioned "firmware transaction timeout". There were no under-voltages at all under Buster, now it happens from time to time right after system has come up. VNC server installed but no remote session activeĪfter upgrading from Buster to Bullseye on a Pi 4 I get a "firmware transaction timeout" on reboot or poweroff if and only if a "Under-voltage detected!" condition happened before. all current available updated installed (T15:00:00+02:00) this is incorrect)ĮDIT: correction: it also can happen at the normal transition from one video to the next one.ĮDIT2: 3 times a random black screen situation out of 92 videos in the playlist ( it does not happen when normally the previous video in the list ends and the next starts. Once VLC shows this behavior, the only way, to get back the picture of the video again is to stop playback and start it again. It does not happen, when i play single video at once.īut when i create a playlist of multiple videos with length of about 2-3minutes each) and start playing the playlist in full-screen when manually navigating form one video to the next media in the playlist, it may happen that the screen keeps black (no video, only audio is playing then). I just noticed also a black screen in VLC similar others reports here.

[hiousi-blog-blog]

SuperLoadedHost with a Pfsense Libvirt VM on a VLAN tagged network

Running a Pfsense instance inside a KVM/libvirt host is trivial. What is less is allowing the host uses dns, dhcp, ntp and all services that the Pfsense guest as to offer.

And what happens if your network is made of tagged VLANs? How to talk to Pfsense VM ans others VM inside the host from your your lan?

Now I known how to do all that, and that make me happy :)

8021q and Macvtap will help

If you are here you probably have some libvirt/KVM VMs running around. My lab host is a Debian 10, so I'm sure all I need is included in the distribution. I have installed libvirt and KVM already, Just check if "8021q" and "macvlan" modules are loaded.

modprobe 8021q lsmod | grep 8021q modprobe macvlan lsmod | grep macvlan

The picture

vlanNN are just linux 8021q interfaces bond to the physical eth0 interface. They are responsible for exchanging tagged traffic from/to the switch. You can give them any name, eth0.NN is commonly used. Keeping the id of the VLAN in the name is not mandatory, you can even give them the name of the VLAN: "management" or "voip" or "data"...

macvlanN are macvlan type interfaces bond to a vlanNN interface, one macvlanN is bond to one vlanNN interface. Those interfaces will be used by libvirt to make a bridge between the host and the guests.

Do not forget to prepare your switch with a trunked port, tagged for all the VLAN ids you need. I need 4 tagged VLANs: 10, 20, 30 and 90.

Host interfaces configuration

Now edit /etc/network/interfaces on the host

# file /etc/network/interfaces # you probably have a main interface in your own file already. # do not add any IP here auto eth0 iface eth0 inet manual pre-up ip link set $IFACE up post-down ip link set $IFACE down # the second interface of the host # the one that is going to the Wan. auto eth1 iface eth1 inet manual # this is the first VLAN interface, for VLAN10 # make one for each of the needed VLAN auto vlan10 iface vlan10 inet manual vlan-raw-device eth0 # the macvlan interface auto macvlan10 iface macvlan10 inet static address 192.168.1.2 netmask 255.255.255.0 gateway 192.168.1.1 pre-up ip link add macvlan10 link vlan10 type macvlan mode bridge post-down ip link set $IFACE down # duplicate vlan and macvlan config for all the VLANs # ... # ...

or if you prefer use iproute2 commands in a bootup script

# iproute2 commands ip link add link eth0 name vlan10 type vlan id 10 ip link set vlan10 up ip link add macvlan10 link vlan10 type macvlan mode ip addr add 192.168.1.2/24 dev vlan10 ip link set macvlan10 up

VM config

Now edit the vm .xml file to create all the needed interfaces.

<interface type='direct'>      <source dev='vlan10' mode='bridge'/>      <model type='virtio'/> </interface> <interface type='direct'>      <source dev='vlan30' mode='passthrough'/>      <model type='virtio'/> </interface> <interface type='direct'>      <source dev='eth1' mode='private'/>      <model type='virtio'/> </interface>

Check to see if all works

Ping from and to anything. From the host you should be able to ping all the bridged VMs. From the VMs, you can ping host and a endpoint on the lan. From the lan, you can ping a VM if you ping from inside the good vlan.

Acknowledgements

furor teutonicus "Enabling host-guest networking with KVM, Macvlan and Macvtap"

DAVID VASSALLO "KVM & BRCTL in Linux – bringing VLANs to the guests"

libvirt "Network XML format"

Hi cube "Macvlan vs Bridge"

[bloojayoolie]

Gg, Run, and Cloud: Press a key to display prompt. You must first login and set a password via 5.84 628. Key type encrypted reg:stered 冫5.84.318, nctosys : unable to open rtc device (rtco 19.069596 Freeing unused kernet emory: 920K (Fffff ff8lc97000 fff 19.162691i Write protecting the kernel read only data: 12288k 19.233469 Freeing unušed kernel memory: 876K (ffff880001725000 fff 19.334896] Freeing unused kernel memory: 1940K (ffff880001a1b000 19.4291191 hub 1-1:1.0: USB hub found 19.474327] hub 1-1:1.0: 4 ports detected [ elcome to Scaleway' initrd https.//j.mp/scw-initrd-linux 20.013499] IPv6: ADDRCONF (NETDEV UP): eth0: link is not ready 20.0849691 8021q: adding VLAN 0 to Hw filter on device ethe GG I 10[ 20. 169 1gb: ethe NIC Link is Up 2500 M th 20.298301] IPv6: ADDRCONF (NETDEV_CHANGE): eth0: link becomes ready 7021 igb 0000:00:14.0 etho: Initrd build: v3.12.7-0-g8ad044c 2017/08/04 >> Kernel version: Linux (none) 4.9.28-std-1 #1 SMP Tue Apr 4 12:56:17 UTC 2017 Installing busybox. .. Mounting pseudo-filesystems. Mounting /dev... >Mounting /dev/pts... > Mounting /sys... Mounting /run... Mounting /proc... Retrieving system info... Kernel cmdline: Physical memory: 8129136 kB es. showopts console-ttys1, 96ens nousb vga-e root-/dev/nbde scal Atom(TM) CPU C2550 @ 2.40G㎐ CPU model: CPU cores: Intel (R) 4 Configuring network... >Retrieving metadata info... >>Server ID: 2adc424e-9fdc-4370-bedf-5e750b8cbceb

[icasbay]

How to Configure 802.1q VLAN Tagging

How to Configure 802.1q VLAN Tagging on RHEL / CentOS 7/8 & Fedora Interface

VLAN tagging is a way of handling a network port with more than one VLAN. VLAN tagging is use to show which packet VLAN is use for a network medium as packets. In this guide 802.1q VLAN Tagging will built on a RHEL / CentOS / Fedora framework network interface.

In addition to a parent interface, an interface is create to construct a VLAN. As they pass through the network, the VLAN interface marks packets with VLAN ID, and the return packets are unmark.

Before doing any configuration, ensure 8021q module is load.

Ensure 8021q module is load

In this example, I’ll configure an enp6s0 interface on the server.

Configure an “enp6s0” interface on the server.

You can use the network manager command line tool – nmcli to accomplish this or directly edit network configuration files.

Manually Edit Configuration files

Edit the parent interface configuration file and set like below.

Edit parent interface configuration file and set

As seen above, we’ve set the interface to come up on boot and we don’t assign IP information here.

Now configure the VLAN interface. The configuration file name should be the parent interface plus a. character plus the VLAN ID number. In my setup, the VLAN ID is 21, and the parent interface is enp6s0, so the configuration file name should be:

Configure VLAN interface

All network configuration information is add into this file.

Network configuration information

Network configuration information

Once the update has made, restart the network service to make adjustments.

Restart network service

Alternatively, manually bring up the interface.

Network manually bring up the interface

Confirm IP address information for the interface.

Confirm IP address information for the interface

Using NMCLI Tool

The same configurations can done purely from the command-line interface. For this method, the NetworkManager service should be running.

NetworkManager

Check current network configurations.

Check current network configurations

To create an 802.1Q VLAN interface on Ethernet interface enp6s0, with VLAN interface VLAN21 and ID 21, issue a command as follows:

Create an 802.1Q VLAN interface on Ethernet interface

You can then assign an IP address to the VLAN Interface.

Assign an IP address to the VLAN Interface

To view all the parameters associated with the VLAN created above, issue a command as follows:

To view all the parameters associated with the VLAN created above

You have successfully configured VLAN tagging on an interface in RHEL / CentOS or Fedora server.

Credit by computingeeks.

https://www.casbay.com/blog/tips-sharing/how-to-configure-802-1q-vlan-tagging/

[office-deals-blog]

Draadloze Router D-Link DSR-1000AC

D-Link DSR-1000AC Wifi-band Dual-band 24 GHz 5 GHz Wifi-standaard IEEE 80211ac WLAN gegevensoverdrachtsnelheid max 1300 Mbits Interfacetype Ethernet LAN Gigabit Ethernet Ethernet LAN data-overdrachtsnelheden 101001000 Mbits Bekabelingstechnologie 101001000Base-TX Netwerkstandaard IEEE 80211a IEEE 80211ac IEEE 80211b IEEE 80211g IEEE 80211h IEEE 8021Q Soort antenne Extern Versterking antenne max 2 dBi Ondersteunde beveiligingsalgoritmen WEP WPA WPA-EAP WPA2 WPS VPN eigenschappen 3DESpThe DSR-1000AC Wireless AC Unified Services VPN Router provides a secure high-performance networking solutions to address the growing needs of small and medium businesses Next generation wireless performance provides wireless speeds of up to 1300 MbpsbrbrComprehensive Management CapabilitiesbrbrThe DSR-1000AC includes dual WAN Gigabit Ethernet ports to provide high availability for your WAN or Internet connections Traffic can be load-balanced across the links with Outbound Load Balancing increasing the performance and availability of business applications It supports mobile broadband networks via an optional USB modem1 such as 3G or 4G2 donglesbrbrWeb Authentication CapabilitiesbrbrCaptive Portal allows employees and guest users to be easily authenticated and authorised by accessing a customised landing page Users can be authenticated by a local database RADIUS LDAP Microsoft Windows Active Directory NT Domain and POP3 server A maximum of four servers can be configured at any one timebrbrComplete and Robust VPN FeaturesbrbrA fully featured virtual private network VPN provides your mobile workers and branch offices with a secure link to your network The DSR-1000AC is capable of Secure Sockets Layer SSL VPN tunnels as well as Generic Routing Encapsulation GRE tunnels empowering your mobile users by providing remote access to a central corporate database Site-to-site VPN tunnels use IP Security IPSec Protocol Point-to-Point Tunneling Protocol PPTP or Layer 2 Tunneling Protocol L2TP to facilitate branch office connectivity through encrypted virtual links OpenVPN allows mobile users to connect to the intranet via encrypted links with their PC laptops or mobile devicesbrbrWeb Content Filtering for HTTPHTTPsbrbrThe DSR-1000AC also provides a web content filtering feature to help administrators monitor manage and control employees Internet usage Static web content filtering helps to remove malicious objects such as Java applets ActiveX and cookies or to block URLs by keyword http://dlvr.it/RKftmm

[macpcserver99]

Dell 540-bbil Chelsio T520-cr High Performance, Dual Port 10 Gbe Unified Wire Adapter ,pci Express X8 ,optical Fiber

540-BBIL PRODUCT DETAILS: DELL 540-BBIL CHELSIO T520-CR HIGH PERFORMANCE, DUAL PORT 10 GBE UNIFIED WIRE ADAPTER ,PCI EXPRESS X8 ,OPTICAL FIBER. TECHNICAL INFORMATION: PHYSICAL CHARACTERISTICS : FORM FACTOR: PLUG-IN CARD HEIGHT: 2.7 WIDTH: 6.6 INTERFACES/PORTS : ETHERNET AUI: NO HOST INTERFACE: PCI EXPRESS X8 NETWORK (RJ-45): NO POE (RJ-45) PORT: NO SERIAL PORT: NO USB: NO XJACK: NO MEDIA & PERFORMANCE: MEDIA TYPE SUPPORTED: OPTICAL FIBER CERTIFICATIONS & STANDARDS: IEEE 802.3AE IEEE 802.3AZ IEEE 802.3Z IEEE 802.1P IEEE 8021Q IEEE 802.1QBG IEEE 802.QHN IEEE 9-2/1QG/H IEEE 802.3X IEEE 802.3AD NETWORK & COMMUNICATION: NETWORK TECHNOLOGY: 10GBASE-LR, 10GBASE-SR Click to buy: Dell 540-bbil Chelsio T520-cr High Performance, Dual Port 10 Gbe Unified Wire Adapter ,pci Express X8 ,optical Fiber from Mac Palace Products Feed https://ift.tt/2RSCfth

[1stlinesupport]

Tenda D303 is an All In One Device that includes Wireless N 300Mbps router four Port Ethernet switch 3G and NAS in one unit The device provides triple WAN ports for broadband connection to ensure an uninterrupted connection It connects to high speed network through DSL or Ethernet connections Also by simply plug an activated 3G USB modem the device connects to a mobile broadband So when the DSLcable connections is disconnected it will connect to a mobile network When DSLcable connection is restored it reconnects to reduce connection billing Hence the D303 is an ideal solution for office situations where a constant and uninterrupted connection is critical or residences where fixed broadband connection is not available Always On Connectivity Provides ADSL 3G and Ethernet WAN for broadband connection ensuring an uninterrupted connection IPTV Ready Easily enjoy lag free streaming IPTV service over your home phone line by connecting the device to set top box Key features StandardProtocol IEEE 80211n IEEE 80211g IEEE 80211bIEEE 8023 IEEE 8023uANSI T1413 ITU G9921 ITU G9922 ITU G9923 ITU G9925CDMA2000 WCDMA Interface 3 10100Mbps auto negotiation Auto MDIMDIX LAN ports1 10100Mbps auto negotiation WANLAN Interchangeable port Auto MDIMDIX1 RJ11 port1 USB V20 Antenna 2 external omni directional antennas Button 1ResetWPS1Power Power Input100 240V 5060MHzOutput9V DC 1A Dimension 17161mm11116mm3447mm LED PowerSYSInternetDSLWLANLANWPSUSB Transmission Media Cat5Cat5eCat6Phone Cable Frequency 24GHZ Internet Connection Type Dynamic IPStatic IPPPPoEIpoABridge Wireless Speed 300Mbps TR 069 Yes Basic Features Wireless Radio OnOffSSID Broadcast OnOffWDS OnOffSSID setupChannel Auto 1 13Network Mode 11b only 11g only 11n only 11bg mixed 11bgn mixedChannel Bandwidth Auto 20MHz 40MHz Security Wireless Access Control Wireless MAC filterWireless Security EnableDisable64 128 bit WEPWPA PSKWPA2 PSK Operating Mode Wireless ADSLADSL2 Modem RouterWDS DHCP Server Yes Virtual Server Yes Security PortURLMAC Filter 3G Access Yes VPN Pass through PPPTP L2TP Ipsec Bandwidth Control Yes VLAN 8021Q VLAN Default Settings Login IP Address 19216811Internet Connection Types BridgePPPoEPPPoAIPoAStatic IPDynamic IPSSID Tendaxxxxxx where xxxxxx represents the last six characters of device MAC addressChannel 6IP Address Pool 19216812 1921681254 Temperature Operating Temperature 0c 40cStorage Temperature 40c 70c Humidity Operating Humidity 10 90 RH Non condensing StorageStorage Humidity 5 90 RH Non condensing Storage Static Routing Yes Logs Yes Other TR 069IPV6IPTV Package Content D303Power AdapterQuick Install Guide1 Ethernet CableADSL Splitter2 Phone Cords Certification CE RoHS FCC

[technationgr]

TP-LINK TL-SG2428P 24 PORTS POE SMART SWITCH

TL-SG2428PJetStream 28-Port Gigabit Smart Switch with 24-Port PoE+ Standards and ProtocolsIEEE 8023i, IEEE 8023u, IEEE 8023ab, IEEE8023z, IEEE 8023ad, IEEE 8023x, IEEE 8023az, IEEE 8021d, IEEE 8021s, IEEE 8021w, IEEE 8021q, IEEE 8021p, IEEE 8021xInterface 24and#215; 10/100/1000 Mbps RJ45 Ports (Auto Negotiation/Auto MDI/MDIX) 4and#215; Gigabit SFP SlotsPoE+ Ports(RJ45) Standard: 8023at/af…

[rwerber-blog1]

Why native vlans are bad design

When using a mixed vendor environment, the use of native vlans is a recipe for disaster. Use of this in a multiple uplink scenario can lead to loops and total loss of service to all switches.

Spanning Tree (802.1d) and Rapid Spanning tree (802.1w) are industry standard protocols which prevent loops on a layer2 basis. In the beginning, Cisco was ahead of everyone when it came to inventing protocols that would later go on to inspire an industry standards.  Examples are HSRP (VRRP), Uplinkfast (Alternate ports in Rapid Spanning Tree), and ISL (802.1q). 

Not all protocols were migrated to industry standard and Cisco still used proprietary extensions for defaults. Ciscos Per Vlan Spanning Tree (PVST) is such a protocol (Some vendors have paid for the rights to use it).  Standard PVST or Rapid PVST run a spanning tree on each vlan.  This allows rudimentary load balancing and traffic engineering on layer2 links.

When you introduce native vlans into a multi vendor enviornment, the 3rd party switch will expect to run 802.1 D or W only on the native vlan.  The cisco will expect this to run on every vlan on that trunk - and will correctly form a STP relationship on the native vlan only! On the cisco, it will not hear any BPDU's (Because the 3rd party switch isn't sending them) and will unblock those vlans.

If there is any sort of secondary layer2 path between those two switches which involve multiple vlans, you will cause a loop, even if the secondary port isnt running a native vlan.  Here is an example.

Both Cisco Switch SW1, Dell switch SW2 and SW3 have vlans 10-20 defined and are allowed on all trunks.

Cisco Trunk ports are configured as such:

Interface Range gi1/1 - 2��  (This means the same config is applied to ports 1 and 2 of card/switch #1) Description Link to Dell Uplink port switchport switchport trunk encapsulation dot1q switchport mode trunk switchport trunk native vlan 10 On the Dell(s)  (Pardon if the syntax is wrong, its been years) Interface g1 Description To Cisco Switch switchport trunk allowed vlan 10-20 switchport mode trunk Interface g2 description to Other Dell Switch switchport trunk allowed vlan 10-20 switchport mode trunk

The Cisco will see a STP relationship on Vlan 10 and act normally.  However, it is going to set vlan 11-20 to FWD on all ports.  The Dells will act as if Vlan 10's spanning-tree is the global spanning tree (Vlan 1), and select to block its ports that way.  If spanning-tree calculated that the Cisco is to block one of its ports, It will not as the Cisco has no idea that it is supposed to block on vlan 11-20... Causing the dressed layer-2 loop.

I learned this lesson The Hard Way (c) while integrating a on board switch of an IBM Blade center into a Cisco environment.  the management interface had to be on the native vlan, and use of vlan 1 anywhere is unadvised.

The only use of a native vlan I have ever seen was on old Cisco 3524xl POE switches which could not do an access-port with a voice vlan.  In this case you had to use a native vlan for PC connectivity.

Servers and workstations belong on (generally) access ports, switches on trunks.  Keep things simple, and please stay away from native vlans.

[technationgr]

TP-LINK TL-SG2428P 24 PORTS POE SMART SWITCH

TL-SG2428PJetStream 28-Port Gigabit Smart Switch with 24-Port PoE+ Standards and ProtocolsIEEE 8023i, IEEE 8023u, IEEE 8023ab, IEEE8023z, IEEE 8023ad, IEEE 8023x, IEEE 8023az, IEEE 8021d, IEEE 8021s, IEEE 8021w, IEEE 8021q, IEEE 8021p, IEEE 8021xInterface 24and#215; 10/100/1000 Mbps RJ45 Ports (Auto Negotiation/Auto MDI/MDIX) 4and#215; Gigabit SFP SlotsPoE+ Ports(RJ45) Standard: 8023at/af…

[technationgr]

TP-LINK TL-SG2428P 24 PORTS POE SMART SWITCH

TL-SG2428PJetStream 28-Port Gigabit Smart Switch with 24-Port PoE+ Standards and ProtocolsIEEE 8023i, IEEE 8023u, IEEE 8023ab, IEEE8023z, IEEE 8023ad, IEEE 8023x, IEEE 8023az, IEEE 8021d, IEEE 8021s, IEEE 8021w, IEEE 8021q, IEEE 8021p, IEEE 8021xInterface 24and#215; 10/100/1000 Mbps RJ45 Ports (Auto Negotiation/Auto MDI/MDIX) 4and#215; Gigabit SFP SlotsPoE+ Ports(RJ45) Standard: 8023at/af…

[technationgr]

TP-LINK TL-SG2428P 24 PORTS POE SMART SWITCH

TL-SG2428PJetStream 28-Port Gigabit Smart Switch with 24-Port PoE+ Standards and ProtocolsIEEE 8023i, IEEE 8023u, IEEE 8023ab, IEEE8023z, IEEE 8023ad, IEEE 8023x, IEEE 8023az, IEEE 8021d, IEEE 8021s, IEEE 8021w, IEEE 8021q, IEEE 8021p, IEEE 8021xInterface 24and#215; 10/100/1000 Mbps RJ45 Ports (Auto Negotiation/Auto MDI/MDIX) 4and#215; Gigabit SFP SlotsPoE+ Ports(RJ45) Standard: 8023at/af…

[technationgr]

TP-LINK TL-SG2428P 24 PORTS POE SMART SWITCH

TL-SG2428PJetStream 28-Port Gigabit Smart Switch with 24-Port PoE+ Standards and ProtocolsIEEE 8023i, IEEE 8023u, IEEE 8023ab, IEEE8023z, IEEE 8023ad, IEEE 8023x, IEEE 8023az, IEEE 8021d, IEEE 8021s, IEEE 8021w, IEEE 8021q, IEEE 8021p, IEEE 8021xInterface 24and#215; 10/100/1000 Mbps RJ45 Ports (Auto Negotiation/Auto MDI/MDIX) 4and#215; Gigabit SFP SlotsPoE+ Ports(RJ45) Standard: 8023at/af…