Questions tagged [cisco-catalyst]

A tag for questions related to Cisco's Catalyst line of switches.

17 questions with no upvoted or accepted answers
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How to break apart an IPv6 /56 6rd delegated prefix from ISP into multiple /64 VLANs for use with SLAAC EUI-64? [Cisco]

I have CenturyLink Internet service, and they have a 6RD IPv6 deployment where they hand out an IPv6 delegated prefix /56 block to me and allow me to use it as I wish. My Cisco ISR router receives the ...
2
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0answers
35 views

Private VLANs implementation

So, I have campus LAN, implemented as many VLANs with InterVLAN routing, that spreads on tens of L2 switches and one L3 switch. Now, I have request that hosts on one VLAN don't see each other. But, ...
1
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0answers
40 views

Cisco QinQ - More than one s-vlan on dot1q-tunnel for the same c-vlans

I have a scenario where I have 3 service vlans (10,20,30) from a trunk port and need to brige our customer vlans (100,200,300,400) between all the service vlans. I need to do it all in the same switch ...
1
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0answers
41 views

Policy Map issue on c6848x 15.2(02)SY

I have a problem creating traffic shaping on c6848x. I need to set shaping on output interface to limit and shape traffic to 100 MBs. So far I did this: class-map match-any 100MB-OUT match any ...
1
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0answers
78 views

Cisco stacking - priority and number information

In case of switches stacking, where are stored the information about the switch number and the switch priority ? After a reset, these information were conserved.
1
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0answers
619 views

Packets are disappearing

I have a server HP DL180 G6, connected to a Cisco switch (4948E or 2960). The server have 2 ethernet ports and ILO shared with data port #1. ILO setted up to request ip from DHCP. 1) When I connect a ...
1
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0answers
2k views

SNMP Stopped working on Catalyst 3560

Got an alert from Observium this morning that one of our spine switches is down. Seemed a little strange. If this was the case, other things would be alerting too. Turns out the switch is up and ...
1
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0answers
268 views

How to configure vlan mapping with VPLS on Cisco 6500 routers?

I'm using VPLS to extend vlan x from site1 (Cisco C6500) to two remotes sites (Cisco C6500) site2 and site3 over MPLS. The issue I'm facing is that a vlan with the same number already exists in the ...
1
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0answers
55 views

Mirroring private vlan on catalyst switches

I currently have a catalyst switch configured with private VLANs and would like to mirror that traffic to an external system. I have tried creating a monitor session for the VLANs involved but that ...
1
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0answers
113 views

Setting up WiFi with new Sonicwall across existing network

I am trying to set up a new WiFi AP in our HR building. There is a closet in the HR building, with a switch connected by fiber to our main network closet, then to another network closet where the ...
0
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0answers
13 views

connectx-3 qsfp to cisco 6509 sup720

I have an hp connectx-3 ib/10gE card flashed to the 2.77 firmware[Latest i think], in the Ethernet port I have a HP Mellanox 655874-B21 HPE QSFP/SFP ADAPTER which goes to a MC3208411-T Mellanox ...
0
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0answers
22 views

ASA ping outside to inside private ip's?

i am new asa and cisco as well , what i am trying to do to perform this lab , only 1 issue is there , i need help in it, i can ping from pc0 to router0 in other way I can ping inside to outside , but ...
0
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1answer
139 views

Best practice / advice for cisco 3560 behind Virtualised OPNsense

Currently I run the below scheme. The problem is that when ESXi is down it takes down all the network with it, so I have to boot up another router to log in to it. WAN > OPNsense (in ESXi)> ...
0
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0answers
99 views

Cannot create connection between two routers in same VLAN via switch

I currently have a Cisco 2960-24TT switch (switch1) and a Cisco 1841 router (router1) that form part of my core network connecting other VLANs and devices. The two ports on router1 have been ...
0
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0answers
59 views

Cisco C3750 and PRTG netfllow

I have a core switch (backbone) of our network that broadcasts all the vlans to other switches. I am trying to configure netflow on the switch and link it up to a Netflow sensor on PRTG. I followed ...
0
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0answers
62 views

Cisco Catalyst QoS queuing model

How Cisco Hardware queuing model (like 1p7q4t for Cat6800) are related to traffic classes (class-map) ? How assign the X traffic class to Y hardware queue ? Also, if only 6 classes are configured, ...
0
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0answers
294 views

SNMPv3 traps on Catalyst 9500

with our new Catalyst 9500 switches we want to use snmpv3 to send traps. Thats what I configured: snmp-server engineID local 1234567890ABCEDF snmp-server group SG_SERVERFARM v3 priv snmp-server trap-...