Hello everyone,

Today I've got fiber installed. It's a 1Gbps ufb from skinny.

With the router they provided, I do get the expected bandwidth values (around 900mbps down, 400mbps up).

I tried configuring my Cisco c867VAE router to work with the UFB connection. it does work, but is way slower. If I connect the WAN port to the ONT, I get about 160Mbps down/up. When I use the skinny router + put the cisco behind it, I achieve 200mbps down/up.

I suspect it could be something related to the MTU, but I am not sure. I may have another setting that make my router slow, but just can't figure out what.

I have a vlan1 I use myself on gigabitethernet0, when I route through gigabitethernet2 (WAN port), I can't get anything near the gigabit speed I can get with the supplied huawei router.

I really can't believe this router cannot be as fast as an ISP hardware.

My config looks like this: (Configuration removed)

I can see the interface are gigabit speed:

RT-c867VAE-K9#show interfaces gigabitEthernet 2
GigabitEthernet2 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 28c7.ceae.eef5 (bia 28c7.ceae.eef5)
Internet address is 192.168.1.2/24
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 1Gbps, media type is RJ45
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/150/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 2644000 bits/sec, 246 packets/sec
5 minute output rate 498000 bits/sec, 127 packets/sec
9855393 packets input, 1759012491 bytes, 0 no buffer
Received 14139 broadcasts (91 IP multicasts)
0 runts, 221601 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
7433513 packets output, 1418095595 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
3 lost carrier, 0 no carrier, 143532 pause output
0 output buffer failures, 0 output buffers swapped out
RT-c867VAE-K9#