ibiblio02: adjust connection settings

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

inventory/host_vars/ibiblio02.fedoraproject.org

@@ -13,7 +13,7 @@ dns_search1: fedoraproject.org
 dns_search2: vpn.fedoraproject.org
 has_ipv4: true
 has_ipv6: true
-mac0: 6c:fe:54:5d:ff:7c
+br0_port0_mac: 6c:fe:54:5d:ff:7c
 network_connections:
   - autoconnect: true
     ip:
@@ -31,11 +31,13 @@ network_connections:
     name: br0
     state: up
     type: bridge
- - mac: '{{ br0_port0_mac }}'
+    mtu: 9000
+ - mac: "{{ br0_port0_mac }}"
     master: br0
     name: br0-port0
     state: up
     type: ethernet
+    mtu: 9000
 nrpe_procs_crit: 1000
 nrpe_procs_warn: 900
 postfix_group: vpn