hi Its telling you the source MAC is not valid , is it online in the mac address table at layer 2 , the 1st mac ?   working 3850 example #traceroute mac 00d0.8309.8729 2c3e.cf22.7d6b Source 00d0.8309.8729 found on xxxxxxxxxxx 1 xxxxxxxxxxx (172.21.x.x) : Gi1/0/4 => Vl253 ... View more

not really if its dual ps good article on it https://blogs.cisco.com/enterprise/what-is-stackpower-and-why-should-you-use-it ... View more

its unified software so you could end up with same issues on both models in terms of bugs always read the software release notes that your running to see what bugs your open to could be stack bugs but on 9300s you can download Everest ios-xe too which is not available on a 9200 series switch , 9300s have much more overall stack bw , 480gb compared to 160gb on 9200s , 9200s are entry level switches check the data sheets it shows the diffs in hardware and capabilities https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9200-series-switches/nb-06-cat9200-ser-data-sheet-cte-en.html https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-9300-series-switches/nb-06-cat9300-ser-data-sheet-cte-en.html ... View more

Hi You could leave it at layer 2 both links just use spanning tree cost on one of the links to make it less preferable spanning-tree cost 10000 , if the preferred link goes down the other path will kick in if the switches are stacked , you could just use a port-channel lacp to the server ... View more

Hi could you not create L3 over these ISP L2 links between the VSS switches and run BFD to get the failover down to mili seconds as another option , rather than trying to tweak RPVST which would be limited in failover times https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bfd/configuration/xe-3s/irb-xe-3s-book/irb-bi-fwd-det.html ... View more

Hi no it cant do true inband traffic , its limited to what it can process Supported Features on the Ethernet Management Port The Ethernet management port supports these features: Express Setup (only in switch stacks) Network Assistant Telnet with passwords TFTP Secure Shell (SSH) DHCP-based autoconfiguration SMNP (only the ENTITY-MIB and the IF-MIB) IP ping Interface features Speed—10 Mb/s, 100 Mb/s, 1000 Mb/s, and autonegotiation Duplex mode—Full, half, and autonegotiation Loopback detection Cisco Discovery Protocol (CDP) DHCP relay agent IPv4 and IPv6 access control lists (ACLs) Routing protocols ... View more

Hi SFP+ ports work fine with 1GB sfp or 10GB sfps with right sfp ,but if your using non cisco sfps whether there supported or not can vary and there will be no support off Cisco if you use them if something goes wrong unfortunately they wont deal with anything non Cisco the port itself if free can be used to connect to a server no issue but i would use a recommended sfp from the list below link for that switch , go to section Supported SFP/SFP+ modules https://www.cisco.com/c/dam/en/us/td/docs/switches/lan/csbms/350xseries/quick_start/guide/Cisco350xseries-QSG-en-US.pdf These switches support twinax , copper sfp cables that would connect to a server at 10GB lot cheaper than fiber sfp like below , there limited in length thats why there so cheap and the SFP is attached , we use them in racks to DELL servers , anything across racks use fibre with 10GB SR sfp which your device supports too https://www.fs.com/de-en/products/30862.html?currency=EUR&paid=google_shopping&gclid=EAIaIQobChMIkbTEp5L75AIVDbDtCh3fSgxDEAQYASABEgKcpPD_BwE ... View more

Hi Thats what a port-channel is its an etherchannel link aggregation , see doc below for example https://thenetworkstack.com/new-cisco-isr4000-series-routers/ ... View more

Hi Use the power calculator below to make sure you have enough POE , you put in the switch and the specific phones use then it totals what you need https://cpc.cloudapps.cisco.com/cpc/ end of day if not enough power on 1 supply phones will shut down ... View more

Hi yes you can do both , supports port-channels and supports pfr.iwan , static routes all can do load balancing different methods 1 basic example static load balancing , pfr would be alot more intelligent https://howdoesinternetwork.com/2015/static-route-load-balance ... View more

Hi 1) Why do C9200-48P and C9200L-48P-4X have a 1000 watts power supply, whereas C9300-48P and C9300L-48P-X have a 715 watts power supply? I mean, all switches are POE switches with 48 ports. But why is there are difference between 9200 series and 9300 series? Are the 9300 more efficient? depends on the POE , whether POE or UPOE , POE+ all need certain watts , also you can get same power watt supplies on each model usually , up to 1100 depends on fixed 9ks 2 Not sure 3) I noticed that there isn't a C9300-NM-4X for the 9300, there is only a C9300-NM-8X. Is that correct? Thats correct minimum 8x10GB for an uplink module if you chose it i think you should go through a supplier and not pay full list price if the company you work with has no Cisco setup , that way you will get a discount off it at some level , even the online suppliers give decent discounts , no one pays list price its very expensive also what are using these for , if its basic user access an pcs/printers the 9200s are fine , were using them as out of band mgmt switches and in some small offices they work fine , using the 9300s as user switches stacked too but we have engineering teams connected to them so the traffic rate can be higher at user end You could getaway without stacking power , just get dual power supplies and if you dont require POE you dont need high end power supplies and some stacking cables for HA , when fully stacked though 93s are 3 times as power as stacked 92s 160GBPs to 480GBPs, 92s are just the entry level switch Theres also the new multi gig range out aswell for both 92s and 93s , if cost is an issue could also look at the SMB 550X switches , may suit a lower budget but still get good features and speeds https://www.cisco.com/c/en/us/products/switches/550x-series-stackable-managed-switches/compare-model.html ... View more

Hi i dont use these but reading the data sheet , its says there combo ports so there's only 2 ports uplinks at 10Gb whether you use them as copper or fiber , so there may be 4 physically but only 2 can be used at a time but if you look at the 24F model that says 4 can be used ... 4 10GE Copper/SFP+ Combo maybe thats what you need https://www.cisco.com/c/en/us/products/collateral/switches/350x-series-stackable-managed-switches/datasheet-c78-735986.html SG350X-24P 24 GE + 4 10GE 24 GE 2 10GE copper/SFP+ combo + 2 SFP+ ... View more

Hi page 399 of 725 IP Configuration Policy-Based Routing https://www.cisco.com/c/dam/en/us/td/docs/switches/lan/csbms/350xg/admin_guide/AG_Tesla_350_550.pdf ... View more

Hi yes they can , the release guides and configuration guides show that there supported , manually or pushed through policy authentication through likes of ISE or ACS ... View more