I have make a dhcp pool on a L2 switch for vlan 100. and my devices from vlan 100 are connected to a L3 switch and the L3 switch is connected to the L2 switch which is the dhcp server but when i do a dhcp request from a Pc on vlan 100 that is connect...
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Resolved! Cisco 5548UP initial configuration
Hi,I have a 5548UP , but looks like very different from the old Cisco Switches I used before.I cannot find any initial configuration guide and I would like to use it as a basic layer 2 switch plus configuring an IP to be able to be reachable from the...
Hello I have problem with loop guard and flapping port.Short info about my network .I have 44 switch connect in spanning tree MSTP. I was configure 3 instances .I deleted the ip switch addresses and changed the vlan names. Vlan X is from instance 1 ...
Hi all, For C9K stacking, i'm aware of this:Full stack 9300x: 1TbFull stack 9300: 480GbpsFull stack 9300L: 320GbpsMixed 9300 + 9300X: yes, but stack speed will be 480Gbps Full stack 9200: 160GbpsFull stack 9200L: 80 GbpsMixed 9200/9200L stacking is ...
I have a 3850 that has no coverage at all with Cisco. I`m looking to upgrade from 16.3.8 to 16.6.9, in order to mitigate vulnerabilities. I can download the software with my account, but I need to know if, for vulnerability reasons, it can be legal...
Hello!Given the tool in the subject, short history, I wanted to upgrade from version 15.2.7E2 to E5, but the webui part was not perfect (attached image). Then I thought I would revert back to E2 and now the device won't load. How can I fix the normal...
Good morning,I have a new "out of the box" IE-4000-8GT8GP4G-E Network Switch. I'm following the express setup procedure but cannot connect to the switch. Browser never opens, step 9 of the enclosed procedure. Has anybody any experience with this type...
Can it be possible to form a etherchannel connectivity between to stacks i.e (between 3850 stack and 3560 horizontal stack) ?Is there a compatibility between 3850 and 3560 switches ?
Hi all,I am using Cisco Packet Tracer for about 4 months. Im using it to study about computer networking. yesterday, i tried to make a network topology with :1 server as DHCP server2 switches for each network2 routers, these will be used for frame-re...
If I have the following topology: R1[1.1.1.1]---------[1.1.1.2]R2[2.2.2.2] ------------[2.2.2.3]R3[3.3.3.3]----------[3.3.3.4]R4 1. r2 is an asr1k with ios-xe. 2. all routes have been statically created on each router. 3. network is stable and al...
Hi All,I was tasked to migrate our client's core switch from their Catalyst 4500 to the new 9500 series. The current setup is they have 2 physical switches installed on different Building (A & B), they also have an existing fiber link between buildin...
Hi - Is there a way to leak aggregated 10/8 from GRT to VRF? I have all different 10.x subnets in GRT but I want to advertise them as single 10/8 to a specific VRF. Is there a way to do that on C9500 platform specifically? If I create a static null0 ...
Resolved! switchport trunk allowed vlan
Why would you add a string like "switchport trunk allowed vlan add 200-201", instead of just adding the VLAN's to the configuration? full config interface GigabitEthernet1/0/12switchport mode trunkswitchport trunk allowed vlan 1,10,20,30,40,60,70,80,...
The scenario is as follows, we have 2 F5 appliances in cluster and 2 Nexus N7K series. Each F5 appliance consists of an LACP 2 x 10G fiber connectivity. Each LACP fiber connects to a different Nexus N7K switch. The thing here is that we are trying to...
Resolved! Technical Support Engineer
I have faced a problem with Catalyst 3750 recently, after we installed POE IP CCTV by about 2 months the switch suddenly crashed except only 3 ports which have the NVR and 2 cameras connected to. After the replacement of the switch with Catalyst 9200...
