ping between Juniper router and Cisco switch doesn't work

m4rtin

I have connected Juniper router and Cisco switch using straight-trough cable. Juniper router port configuration is following:

description 1000BASE-T;
unit 0 {
    family inet {
        address 192.168.99.1/24;
    }
}

..and "show interfaces ge-1/2/0 terse" shows that interface is up:

Interface               Admin Link Proto    Local                 Remote
ge-1/2/0                up    up  
ge-1/2/0.0              up    up   inet     192.168.99.1/24

Cisco switch access port is configured like this:

interface GigabitEthernet6/5
 description VLAN99
 switchport access vlan 99
end

VLAN 99 is present in the switch. According to "show interfaces status", Gi6/5 seems to be up:

Gi6/5     VLAN99             connected    99         a-full a-1000 10/100/1000-TX

In addition, I have configured IP interface in switch, which is up as well:

Vlan99                 192.168.99.2    YES manual up                    up

The problem is that I'm not able ping between router and switch. For example from Juniper:

> ping 192.168.99.2 source 192.168.99.1 count 4   
PING 192.168.99.2 (192.168.99.2): 56 data bytes

--- 192.168.99.2 ping statistics ---
4 packets transmitted, 0 packets received, 100% packet loss

In switch I'm not able to see incoming MAC address on port Gi6/5. Route entry in router is present. Any ideas, what might be wrong here? If any additional information is needed, please ask

IOS2JUNOS

what if you assign ip to switch port direct

interface GigabitEthernet6/5
no switchport
ip address x.x.x.x

and then try to ping ..does that work?

mkomon

Can you post relevant parts of the config files? What types of Juniper/Cisco gear is it?

So far my guess would be the cable, although the negotiated gig speed doesn't support my guess too much.